diff --git a/src/mono/wasm/build/WasmApp.Native.targets b/src/mono/wasm/build/WasmApp.Native.targets
index 17cddce463a286..3b005902cfcb54 100644
--- a/src/mono/wasm/build/WasmApp.Native.targets
+++ b/src/mono/wasm/build/WasmApp.Native.targets
@@ -185,8 +185,8 @@
       <_EmccCompileBitcodeRsp>$(_WasmIntermediateOutputPath)emcc-compile-bc.rsp</_EmccCompileBitcodeRsp>
       <_EmccLinkRsp>$(_WasmIntermediateOutputPath)emcc-link.rsp</_EmccLinkRsp>
 
-      <EmccInitialMemory Condition="'$(EmccInitialMemory)' == ''">$(EmccTotalMemory)</EmccInitialMemory>
-      <EmccInitialMemory Condition="'$(EmccInitialMemory)' == ''">536870912</EmccInitialMemory>
+      <EmccInitialHeapSize Condition="'$(EmccInitialHeapSize)' == ''">$(EmccTotalMemory)</EmccInitialHeapSize>
+      <EmccInitialHeapSize Condition="'$(EmccInitialHeapSize)' == ''">536870912</EmccInitialHeapSize>
     </PropertyGroup>
 
     <ItemGroup>
@@ -223,7 +223,7 @@
       <_EmccLDFlags Include="$(EmccLinkOptimizationFlag)" />
       <_EmccLDFlags Include="@(_EmccCommonFlags)" />
       <_EmccLDFlags Include="-Wl,--allow-undefined" />
-      <_EmccLDSFlags Include="-s INITIAL_MEMORY=$(EmccInitialMemory)" />
+      <_EmccLDSFlags Include="-s INITIAL_MEMORY=$(EmccInitialHeapSize)" />
 
       <!-- ILLinker should have removed unused imports, so error for Publish -->
       <_EmccLDSFlags Include="-s ERROR_ON_UNDEFINED_SYMBOLS=0" Condition="'$(WasmBuildingForNestedPublish)' != 'true'" />
diff --git a/src/mono/wasm/build/WasmApp.targets b/src/mono/wasm/build/WasmApp.targets
index b062cc3323fd70..969a5451b98a91 100644
--- a/src/mono/wasm/build/WasmApp.targets
+++ b/src/mono/wasm/build/WasmApp.targets
@@ -51,7 +51,8 @@
       - $(EmccFlags)                        - Emcc flags used for both compiling native files, and linking
       - $(EmccExtraLDFlags)                 - Extra emcc flags for linking
       - $(EmccExtraCFlags)                  - Extra emcc flags for compiling native files
-      - $(EmccInitialMemory)                - Initial memory specified with `emcc`. Default value: 536870912
+      - $(EmccInitialHeapSize)              - Initial heap size specified with `emcc`. Default value: 536870912
+                                              Corresponds to `INITIAL_MEMORY` arg for emcc.
                                               (previously named EmccTotalMemory, which is still kept as an alias)
 
       - $(WasmBuildAppAfterThisTarget)      - This target is used as `AfterTargets` for `WasmBuildApp. this