diff --git a/ex22.mk b/ex22.mk
index e726f51..5ef707f 100644
--- a/ex22.mk
+++ b/ex22.mk
@@ -5,6 +5,6 @@ ex22_main: ex22_main.o ex22.o
 
 
 clean:
-	rm -f ex22_main ex22.o ex22_main.o
+	rm -f ex22_main ex22.o ex22_main.o ex22_ec1
 
 .PHONY: all clean