diff --git a/src/util.c b/src/util.c
index 6cf4080..6a65bba 100644
--- a/src/util.c
+++ b/src/util.c
@@ -424,8 +424,8 @@ void addparentstats(struct dir *d, int64_t size, int64_t asize, uint64_t mtime,
   char buf[128];\
   while((ptr = f) == NULL) {\
     close_nc();\
-    write(2, oom_msg, sizeof(oom_msg));\
-    read(0, buf, sizeof(buf));\
+    (void) !write(2, oom_msg, sizeof(oom_msg));\
+    (void) !read(0, buf, sizeof(buf));\
   }\
   return ptr;