diff --git a/Sources/XcodeProj/Objects/Files/PBXFileSystemSynchronizedBuildFileExceptionSet.swift b/Sources/XcodeProj/Objects/Files/PBXFileSystemSynchronizedBuildFileExceptionSet.swift
index c375f16d0..e007bb879 100644
--- a/Sources/XcodeProj/Objects/Files/PBXFileSystemSynchronizedBuildFileExceptionSet.swift
+++ b/Sources/XcodeProj/Objects/Files/PBXFileSystemSynchronizedBuildFileExceptionSet.swift
@@ -25,6 +25,11 @@ public class PBXFileSystemSynchronizedBuildFileExceptionSet: PBXFileSystemSynchr
     /// This is used for example when linking frameworks to specify that they are optional with the attribute "Weak"
     public var attributesByRelativePath: [String: [String]]?
 
+    /// Platform filters by relative path.
+    /// Every item in the list is the relative path inside the root synchronized group.
+    /// The value is the list of platform filters (e.g. "ios", "tvos") that the file should be included for.
+    public var platformFiltersByRelativePath: [String: [String]]?
+
     var targetReference: PBXObjectReference
 
     public var target: PBXTarget! {
@@ -43,13 +48,15 @@ public class PBXFileSystemSynchronizedBuildFileExceptionSet: PBXFileSystemSynchr
                 publicHeaders: [String]?,
                 privateHeaders: [String]?,
                 additionalCompilerFlagsByRelativePath: [String: String]?,
-                attributesByRelativePath: [String: [String]]?) {
+                attributesByRelativePath: [String: [String]]?,
+                platformFiltersByRelativePath: [String: [String]]? = nil) {
         targetReference = target.reference
         self.membershipExceptions = membershipExceptions
         self.publicHeaders = publicHeaders
         self.privateHeaders = privateHeaders
         self.additionalCompilerFlagsByRelativePath = additionalCompilerFlagsByRelativePath
         self.attributesByRelativePath = attributesByRelativePath
+        self.platformFiltersByRelativePath = platformFiltersByRelativePath
         super.init()
     }
 
@@ -62,6 +69,7 @@ public class PBXFileSystemSynchronizedBuildFileExceptionSet: PBXFileSystemSynchr
         case privateHeaders
         case additionalCompilerFlagsByRelativePath
         case attributesByRelativePath
+        case platformFiltersByRelativePath
     }
 
     public required init(from decoder: Decoder) throws {
@@ -75,6 +83,7 @@ public class PBXFileSystemSynchronizedBuildFileExceptionSet: PBXFileSystemSynchr
         privateHeaders = try container.decodeIfPresent(.privateHeaders)
         additionalCompilerFlagsByRelativePath = try container.decodeIfPresent(.additionalCompilerFlagsByRelativePath)
         attributesByRelativePath = try container.decodeIfPresent(.attributesByRelativePath)
+        platformFiltersByRelativePath = try container.decodeIfPresent(.platformFiltersByRelativePath)
         try super.init(from: decoder)
     }
 
@@ -109,6 +118,11 @@ public class PBXFileSystemSynchronizedBuildFileExceptionSet: PBXFileSystemSynchr
                 (CommentedString(key), .array(value.map { .string(CommentedString($0)) }))
             }))
         }
+        if let platformFiltersByRelativePath {
+            dictionary["platformFiltersByRelativePath"] = .dictionary(Dictionary(uniqueKeysWithValues: platformFiltersByRelativePath.map { key, value in
+                (CommentedString(key), .array(value.map { .string(CommentedString($0)) }))
+            }))
+        }
         dictionary["target"] = .string(CommentedString(target.reference.value, comment: target.name))
         return (key: CommentedString(reference, comment: "PBXFileSystemSynchronizedBuildFileExceptionSet"), value: .dictionary(dictionary))
     }
diff --git a/Sources/XcodeProj/Objects/Sourcery/Equality.generated.swift b/Sources/XcodeProj/Objects/Sourcery/Equality.generated.swift
index cd69699a9..016c323ca 100644
--- a/Sources/XcodeProj/Objects/Sourcery/Equality.generated.swift
+++ b/Sources/XcodeProj/Objects/Sourcery/Equality.generated.swift
@@ -319,6 +319,7 @@ extension PBXFileSystemSynchronizedBuildFileExceptionSet {
         if targetReference != rhs.targetReference { return false }
         if publicHeaders != rhs.publicHeaders { return false }
         if privateHeaders != rhs.privateHeaders { return false }
+        if platformFiltersByRelativePath != rhs.platformFiltersByRelativePath { return false }
         return super.isEqual(to: rhs)
     }
 }
diff --git a/Tests/XcodeProjTests/Objects/Files/PBXFileSystemSynchronizedBuildFileExceptionSet+Fixtures.swift b/Tests/XcodeProjTests/Objects/Files/PBXFileSystemSynchronizedBuildFileExceptionSet+Fixtures.swift
index 17e0b1f0d..bda5f78ea 100644
--- a/Tests/XcodeProjTests/Objects/Files/PBXFileSystemSynchronizedBuildFileExceptionSet+Fixtures.swift
+++ b/Tests/XcodeProjTests/Objects/Files/PBXFileSystemSynchronizedBuildFileExceptionSet+Fixtures.swift
@@ -6,12 +6,14 @@ extension PBXFileSystemSynchronizedBuildFileExceptionSet {
                         publicHeaders: [String]? = [],
                         privateHeaders: [String]? = [],
                         additionalCompilerFlagsByRelativePath: [String: String]? = nil,
-                        attributesByRelativePath: [String: [String]]? = nil) -> PBXFileSystemSynchronizedBuildFileExceptionSet {
+                        attributesByRelativePath: [String: [String]]? = nil,
+                        platformFiltersByRelativePath: [String: [String]]? = nil) -> PBXFileSystemSynchronizedBuildFileExceptionSet {
         PBXFileSystemSynchronizedBuildFileExceptionSet(target: target,
                                                        membershipExceptions: membershipExceptions,
                                                        publicHeaders: publicHeaders,
                                                        privateHeaders: privateHeaders,
                                                        additionalCompilerFlagsByRelativePath: additionalCompilerFlagsByRelativePath,
-                                                       attributesByRelativePath: attributesByRelativePath)
+                                                       attributesByRelativePath: attributesByRelativePath,
+                                                       platformFiltersByRelativePath: platformFiltersByRelativePath)
     }
 }
diff --git a/Tests/XcodeProjTests/Objects/Files/PBXFileSystemSynchronizedBuildFileExceptionSetTests.swift b/Tests/XcodeProjTests/Objects/Files/PBXFileSystemSynchronizedBuildFileExceptionSetTests.swift
index 842954846..0ef9fda58 100644
--- a/Tests/XcodeProjTests/Objects/Files/PBXFileSystemSynchronizedBuildFileExceptionSetTests.swift
+++ b/Tests/XcodeProjTests/Objects/Files/PBXFileSystemSynchronizedBuildFileExceptionSetTests.swift
@@ -26,4 +26,53 @@ final class PBXFileSystemSynchronizedBuildFileExceptionSetTests: XCTestCase {
         let another = PBXFileSystemSynchronizedBuildFileExceptionSet.fixture(target: target)
         XCTAssertEqual(subject, another)
     }
+
+    func test_equal_withDifferentPlatformFilters_returnsNotEqual() {
+        let one = PBXFileSystemSynchronizedBuildFileExceptionSet.fixture(
+            target: target,
+            platformFiltersByRelativePath: ["file.swift": ["ios"]]
+        )
+        let another = PBXFileSystemSynchronizedBuildFileExceptionSet.fixture(
+            target: target,
+            platformFiltersByRelativePath: ["file.swift": ["tvos"]]
+        )
+        XCTAssertNotEqual(one, another)
+    }
+
+    func test_plistKeyAndValue_platformFiltersByRelativePath_serializesCorrectly() throws {
+        let proj = PBXProj()
+        let exceptionSet = PBXFileSystemSynchronizedBuildFileExceptionSet.fixture(
+            target: target,
+            platformFiltersByRelativePath: [
+                "Resources/ios_only.mp4": ["ios"],
+                "Resources/multi.mp4": ["ios", "tvos"],
+            ]
+        )
+        proj.add(object: exceptionSet)
+
+        let (_, plistValue) = try exceptionSet.plistKeyAndValue(proj: proj, reference: "ref")
+
+        let dict = try XCTUnwrap(plistValue.dictionary?[CommentedString("platformFiltersByRelativePath")]?.dictionary)
+        XCTAssertEqual(
+            dict[CommentedString("Resources/ios_only.mp4")],
+            .array([.string(CommentedString("ios"))])
+        )
+        XCTAssertEqual(
+            dict[CommentedString("Resources/multi.mp4")],
+            .array([.string(CommentedString("ios")), .string(CommentedString("tvos"))])
+        )
+    }
+
+    func test_plistKeyAndValue_platformFiltersByRelativePath_omittedWhenNil() throws {
+        let proj = PBXProj()
+        let exceptionSet = PBXFileSystemSynchronizedBuildFileExceptionSet.fixture(
+            target: target,
+            platformFiltersByRelativePath: nil
+        )
+        proj.add(object: exceptionSet)
+
+        let (_, plistValue) = try exceptionSet.plistKeyAndValue(proj: proj, reference: "ref")
+
+        XCTAssertNil(plistValue.dictionary?[CommentedString("platformFiltersByRelativePath")])
+    }
 }