diff --git a/src/MacVim/PSMTabBarControl/source/PSMRolloverButton.m b/src/MacVim/PSMTabBarControl/source/PSMRolloverButton.m
index 2ed10f95c6..10fed285a0 100644
--- a/src/MacVim/PSMTabBarControl/source/PSMRolloverButton.m
+++ b/src/MacVim/PSMTabBarControl/source/PSMRolloverButton.m
@@ -10,6 +10,14 @@
 
 @implementation PSMRolloverButton
 
+- (void)dealloc
+{
+    [_usualImage release];
+    [_rolloverImage release];
+
+    [super dealloc];
+}
+
 // the regular image
 - (void)setUsualImage:(NSImage *)newImage
 {