diff --git a/src/kits/app/Message.cpp b/src/kits/app/Message.cpp
index 75e30b56d1..bf1b9df250 100644
--- a/src/kits/app/Message.cpp
+++ b/src/kits/app/Message.cpp
@@ -255,6 +255,8 @@ void
 BMessage::operator delete(void *pointer, size_t size)
 {
 	DEBUG_FUNCTION_ENTER2;
+	if (pointer == NULL)
+		return;
 	sMsgCache->Save(pointer, size);
 }