diff --git a/arb-real.yml b/arb-real.yml
index 271b049e..2f86ae90 100644
--- a/arb-real.yml
+++ b/arb-real.yml
@@ -2,7 +2,7 @@ version: '3.1'
 
 services:
   arb-real:
-    image: 'offchainlabs/nitro-node:${NITRO_VERSION:-v3.0.2-9efbc16}
+    image: 'offchainlabs/nitro-node:${NITRO_VERSION:-v3.0.2-9efbc16}'
     stop_grace_period: 3m
     user: root
     volumes: