diff --git a/src/kits/support/support.src b/src/kits/support/support.src
index 7aee57f05d..8100f669a4 100644
--- a/src/kits/support/support.src
+++ b/src/kits/support/support.src
@@ -1,6 +1,6 @@
 SUPPORT_KIT_SOURCE =
 	Archivable.cpp
-#	BlockCache.cpp
+	BlockCache.cpp
 	DataIO.cpp
 	BufferIO.cpp
 	Flattenable.cpp