diff --git a/docker-compose.staging.yml b/docker-compose.staging.yml
index 67c80be8..e466bc03 100644
--- a/docker-compose.staging.yml
+++ b/docker-compose.staging.yml
@@ -20,7 +20,7 @@ services:
     environment:
       - TZ=Europe/Berlin
       - APP_ENV=staging
-      - APP_DEBUG=${APP_DEBUG:-false}
+      - APP_DEBUG=false
       - APP_URL=https://staging.michaelschiemer.de
       - APP_KEY=${APP_KEY:-}
       # Git Repository - clones staging branch
@@ -210,7 +210,7 @@ services:
     environment:
       - TZ=Europe/Berlin
       - APP_ENV=staging
-      - APP_DEBUG=${APP_DEBUG:-false}
+      - APP_DEBUG=false
       # Git Repository - clones staging branch
       - GIT_REPOSITORY_URL=${GIT_REPOSITORY_URL:-}
       - GIT_BRANCH=staging
@@ -351,7 +351,7 @@ services:
     environment:
       - TZ=Europe/Berlin
       - APP_ENV=staging
-      - APP_DEBUG=${APP_DEBUG:-false}
+      - APP_DEBUG=false
       # Database - using separate staging database
       - DB_HOST=postgres
       - DB_PORT=5432
@@ -406,7 +406,7 @@ services:
     environment:
       - TZ=Europe/Berlin
       - APP_ENV=staging
-      - APP_DEBUG=${APP_DEBUG:-false}
+      - APP_DEBUG=false
       # Database - using separate staging database
       - DB_HOST=postgres
       - DB_PORT=5432