diff --git a/src/radius/Makefile b/src/radius/Makefile
index b199be8..b5d063d 100644
--- a/src/radius/Makefile
+++ b/src/radius/Makefile
@@ -1,7 +1,7 @@
 all: libradius.a
 
 clean:
-	rm -f *~ *.o *.d libradius.a
+	rm -f *~ *.o *.d *.gcno *.gcda *.gcov libradius.a
 
 install:
 	@echo Nothing to be made.