install(1) does not like file listed twice on commandline

--- gDesklets-0.36.2/config/Makefile.am~	2008-12-30 16:55:54.000000000 +0200
+++ gDesklets-0.36.2/config/Makefile.am	2011-01-17 10:42:51.178674034 +0200
@@ -23,7 +23,6 @@
 	ConfigDialog.py   \
 	ConfigWidget.py   \
 	ConfigManager.py  \
-	ConfigWidget.py   \
 	DaemonConfigger.py  \
 	DisplayConfigger.py \
 	StateSaver.py     \