diff --git a/Makefile.maint b/Makefile.maint
index 8634b8463..6643e2c5f 100644
--- a/Makefile.maint
+++ b/Makefile.maint
@@ -28,7 +28,7 @@ GZIP_ENV = '--no-name --best'
 
 CVS = cvs
 
-CVS_LIST = cvsu --find --types='^.C'
+CVS_LIST = cvsu --find --types=AFGM
 
 ifeq ($(origin prev_version_file), undefined)
   prev_version_file = .prev-version