diff --git a/build.sh b/build.sh
index eff82273..847fd827 100755
--- a/build.sh
+++ b/build.sh
@@ -12,9 +12,9 @@ case "${1:-default}" in
 		;;
 
 	test)
-		ulimit -t 60 || true
-		ulimit -d 512000 || true
-		ulimit -m 512000 || true
+		ulimit -t 60 &>/dev/null || true
+		ulimit -d 512000 &>/dev/null || true
+		ulimit -m 512000 &>/dev/null || true
 
 		go run build.go "$1"
 		;;
@@ -68,9 +68,9 @@ case "${1:-default}" in
 		;;
 
 	test-cov)
-		ulimit -t 60 || true
-		ulimit -d 512000 || true
-		ulimit -m 512000 || true
+		ulimit -t 60 &>/dev/null || true
+		ulimit -d 512000 &>/dev/null || true
+		ulimit -m 512000 &>/dev/null || true
 
 		go get github.com/axw/gocov/gocov
 		go get github.com/AlekSi/gocov-xml