diff --git a/themes/CMakeLists.txt b/themes/CMakeLists.txt
index cea25b7..5d78457 100644
--- a/themes/CMakeLists.txt
+++ b/themes/CMakeLists.txt
@@ -1,2 +1,2 @@
-file( GLOB EXTRATHEMEFILES *tint2rc )
+file( GLOB EXTRATHEMEFILES *.tint2rc )
 install( FILES ${EXTRATHEMEFILES} DESTINATION ${DATADIR}/tint2 )