diff --git a/bld/as/master.mif b/bld/as/master.mif
index ae2874d3b6..8b3db4ccec 100644
--- a/bld/as/master.mif
+++ b/bld/as/master.mif
@@ -8,7 +8,7 @@ was_trmem = 1
 
 was_wreslib = 1
 
-additional_clean = *.c *.h *.re *.y *.gh *.grh *.grc
+additional_clean = *.c *.h *.re *.y *.gh *.gc *.grh *.grc
 
 !include cproj.mif
 !include defrule.mif