diff --git a/camel-core/src/main/java/org/apache/camel/converter/stream/FileInputStreamCache.java b/camel-core/src/main/java/org/apache/camel/converter/stream/FileInputStreamCache.java
index 558fda0a35dc2..44855624120e8 100644
--- a/camel-core/src/main/java/org/apache/camel/converter/stream/FileInputStreamCache.java
+++ b/camel-core/src/main/java/org/apache/camel/converter/stream/FileInputStreamCache.java
@@ -83,6 +83,7 @@ public void writeTo(OutputStream os) throws IOException {
                 long i = fc.transferTo(pos, len - pos, out);
                 pos += i;
             }
+            fc.close();
             s.close();
         } else {
             IOHelper.copy(getInputStream(), os);