diff --git a/test/itest-tcp.sh b/test/itest-tcp.sh
index 93b1e63f..1933b3b4 100755
--- a/test/itest-tcp.sh
+++ b/test/itest-tcp.sh
@@ -1,4 +1,4 @@
-go build -o build/gohangout-test
+go build -o build/gohangout-test || exit 255
 gohangout='build/gohangout-test'
 
 em_print() {