diff --git a/contrib/halog/Makefile b/contrib/halog/Makefile
index 680a5b730..26758e8a6 100644
--- a/contrib/halog/Makefile
+++ b/contrib/halog/Makefile
@@ -12,4 +12,4 @@ halog: halog.c fgets2.c
 	$(CC) $(OPTIMIZE) -o $@ $(INCLUDE) $(EBTREE_DIR)/ebtree.c $(EBTREE_DIR)/eb32tree.c $(EBTREE_DIR)/eb64tree.c $(EBTREE_DIR)/ebmbtree.c $(EBTREE_DIR)/ebsttree.c $(EBTREE_DIR)/ebistree.c $(EBTREE_DIR)/ebimtree.c $^
 
 clean:
-	rm -f $(OBJS)
+	rm -f $(OBJS) *.[oas]