diff --git a/util/cp.c b/util/cp.c
index 416985d..840a72a 100644
--- a/util/cp.c
+++ b/util/cp.c
@@ -40,13 +40,13 @@ cp(const char *s1, const char *s2)
 				if(strcmp(d->d_name, ".")
 						&& strcmp(d->d_name, "..")) {
 					if(snprintf(ns1, size1, "%s/%s", s1,
-							d->d_name) > size1) {
+							d->d_name) >= size1) {
 						eprintf("%s/%s: filename too long\n",
 								s1, d->d_name);
 					}
 
 					if(snprintf(ns2, size2, "%s/%s", s2,
-							d->d_name) > size2) {
+							d->d_name) >= size2) {
 						eprintf("%s/%s: filename too long\n",
 								s2, d->d_name);
 					}
diff --git a/util/enmasse.c b/util/enmasse.c
index acf9ba6..48700e9 100644
--- a/util/enmasse.c
+++ b/util/enmasse.c
@@ -26,7 +26,7 @@ enmasse(int argc, char **argv, int (*fn)(const char *, const char *))
 
 	apathmax(&buf, &size);
 	for(i = 0; i < argc; i++) {
-		if(snprintf(buf, size, "%s/%s", dir, basename(argv[i])) > size) {
+		if(snprintf(buf, size, "%s/%s", dir, basename(argv[i])) >= size) {
 			eprintf("%s/%s: filename too long\n", dir,
 					basename(argv[i]));
 		}