diff --git a/ibus.spec b/ibus.spec
index e926a18..d76ae83 100644
--- a/ibus.spec
+++ b/ibus.spec
@@ -277,9 +277,6 @@ the functionality of the installed %{name} package.
 # cp client/gtk2/ibusimcontext.c client/gtk3/ibusimcontext.c || :
 # cp client/gtk2/ibusim.c client/gtk3/ibusim.c || :
 # cp client/gtk2/ibusimcontext.c client/gtk4/ibusimcontext.c || :
-cp client/gtk2/ibusimcontext.c client/gtk3/ibusimcontext.c || :
-cp client/gtk2/ibusimcontext.c client/gtk4/ibusimcontext.c || :
-cp client/gtk2/ibusim.c client/gtk3/ibusim.c || :
 
 
 # prep test