diff --git a/manage-server/env.template b/manage-server/env.template
index fb35155..ce1e011 100644
--- a/manage-server/env.template
+++ b/manage-server/env.template
@@ -54,5 +54,5 @@ TLS_CERT_HOST_DIR=/etc/triton/tls
 # ─── Sessions ────────────────────────────────────────────────────────────
 TRITON_MANAGE_SESSION_TTL=24h
 
-# ─── Image ───────────────────────────────────────────────────────────────
-TRITON_MANAGE_IMAGE=ghcr.io/primatekuntech/triton-manageserver:latest
+# ─── Image (override only — default is set in compose.yaml) ──────────────
+# TRITON_MANAGE_IMAGE=ghcr.io/primatekuntech/triton-manageserver:latest
diff --git a/manage-server/install.sh b/manage-server/install.sh
index 7f66d9e..7d87287 100755
--- a/manage-server/install.sh
+++ b/manage-server/install.sh
@@ -75,7 +75,7 @@ if [[ ! -f "$ENV_FILE" ]]; then
 
     [[ -n "$GATEWAY_HOST" ]] && sed -i "s|^TRITON_MANAGE_GATEWAY_HOSTNAME=.*|TRITON_MANAGE_GATEWAY_HOSTNAME=$GATEWAY_HOST|" "$ENV_FILE"
     [[ -n "$HOST_IP"      ]] && sed -i "s|^TRITON_MANAGE_HOST_IP=.*|TRITON_MANAGE_HOST_IP=$HOST_IP|"                       "$ENV_FILE"
-    [[ -n "$IMAGE"        ]] && sed -i "s|^TRITON_MANAGE_IMAGE=.*|TRITON_MANAGE_IMAGE=$IMAGE|"                             "$ENV_FILE"
+    [[ -n "$IMAGE"        ]] && printf '\nTRITON_MANAGE_IMAGE=%s\n' "$IMAGE" >> "$ENV_FILE"
 
     info ".env created at $ENV_FILE"
     info "  back this up — it contains the JWT signing key, worker key, and vault key"