diff --git a/build.sh b/build.sh
index cdffc95..e4e88a3 100755
--- a/build.sh
+++ b/build.sh
@@ -5,5 +5,10 @@ if [[ ! -d ./build ]]; then
 fi
 
 pushd "./build"
+echo "Building test/main"
 gcc -g -std=c89 "../test/main.c" -o main.c
+if [[ $? == 0 ]] && [[ $1 == "--run" ]]; then
+    ./main.c
+fi
 popd
+