diff --git a/Makefile b/Makefile
index 7ff1239f9cd2cbdd146092f342df412cad37d285..f618530a38701bb4c12eaff3783dab9da0f1cce0 100644
--- a/Makefile
+++ b/Makefile
@@ -1430,6 +1430,7 @@ clean: $(clean-dirs)
 		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
 		-o -name '*.ko.*' \
 		-o -name '*.dwo'  \
+		-o -name '*.su'  \
 		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
 		-o -name '*.symtypes' -o -name 'modules.order' \
 		-o -name modules.builtin -o -name '.tmp_*.o.*' \