diff --git a/check-health/Dockerfile b/check-health/Dockerfile
index 3e9a8f9f..420ee96b 100644
--- a/check-health/Dockerfile
+++ b/check-health/Dockerfile
@@ -9,12 +9,12 @@ RUN apk add --no-cache \
 
 WORKDIR /repo
 
-ENV RPC_URL
-ENV REF_URL
+ENV RPC_URL=
+ENV REF_URL=
 ENV CHECK_INTERVAL=30
 
 # Make the mounted script executable at runtime
-while true; do \
+CMD while true; do \
    /repo/check-health.sh ${RPC_URL} ${REF_URL} > /health/status 2>&1; \
    sleep ${CHECK_INTERVAL}; \
-done
\ No newline at end of file
+done
diff --git a/fuse.yml b/fuse.yml
index f7dd2f31..46bdc9cd 100644
--- a/fuse.yml
+++ b/fuse.yml
@@ -16,6 +16,8 @@ services:
     volumes:
       - .:/repo:ro
       - fuse-nethermind-health:/health:rw
+    networks: 
+      - chains
   
   fuse-nethermind:
     image: fusenet/node:nethermind-1.25.4-v6.0.2