diff --git a/src/kits/support/support.src b/src/kits/support/support.src
index ac5916f2d9..a39a68c555 100644
--- a/src/kits/support/support.src
+++ b/src/kits/support/support.src
@@ -5,7 +5,6 @@ SUPPORT_KIT_SOURCE =
 	Flattenable.cpp
 	List.cpp
 	Locker.cpp
-	MallocIO.cpp
 	StopWatch.cpp
 	String.cpp
 ;