diff --git a/scripts/build.sh b/scripts/build.sh
index 5f6095c9..f52348d2 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -6,6 +6,12 @@ target=$1
 echo "build frontend"
 echo
 
+if [ ! -f 'ffplayout-frontend/package.json' ]; then
+    git submodule update --init
+else
+    git submodule update --remote --merge
+fi
+
 yes | rm -rf public
 cd ffplayout-frontend