diff --git a/start.sh b/start.sh
index 19ed22f..504526d 100644
--- a/start.sh
+++ b/start.sh
@@ -1,6 +1,10 @@
 #!/bin/sh
 
-npm install --production
+if [ ! -d "node_modules/" ]; then
+
+	npm install --production
+
+fi
 
 node main.js