diff --git a/src/mac/carbon/taskbar.cpp b/src/mac/carbon/taskbar.cpp
index 494e0aa48d..b122b034a2 100644
--- a/src/mac/carbon/taskbar.cpp
+++ b/src/mac/carbon/taskbar.cpp
@@ -165,6 +165,9 @@ bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
 	err = SetApplicationDockTileImage(pImage);
 		
 	wxASSERT(err == 0);
+    
+    if (pImage != NULL)
+        CGImageRelease(pImage);
 
         m_iconAdded = true;
 	return true;