diff --git a/magneticod/docker-compose.yml b/magneticod/docker-compose.yml
index 811117a..df39b73 100644
--- a/magneticod/docker-compose.yml
+++ b/magneticod/docker-compose.yml
@@ -18,5 +18,5 @@ services:
     logging:
       driver: "json-file"
       options:
-        max-size: "${LOG_MAX_SIZE}"
-        max-file: "${LOG_MAX_FILE}"
+        max-size: "${LOG_MAX_SIZE:-5m}"
+        max-file: "${LOG_MAX_FILE:-5}"
diff --git a/murmur/docker-compose.yml b/murmur/docker-compose.yml
index 5f93945..4537ebb 100644
--- a/murmur/docker-compose.yml
+++ b/murmur/docker-compose.yml
@@ -20,8 +20,8 @@ services:
     logging:
       driver: "json-file"
       options:
-        max-size: "${LOG_MAX_SIZE}"
-        max-file: "${LOG_MAX_FILE}"
+        max-size: "${LOG_MAX_SIZE:-5m}"
+        max-file: "${LOG_MAX_FILE:-5}"
 
 volumes:
   murmur-data:
diff --git a/yacy/docker-compose.yml b/yacy/docker-compose.yml
index ceab887..0b4e2e9 100644
--- a/yacy/docker-compose.yml
+++ b/yacy/docker-compose.yml
@@ -15,5 +15,5 @@ services:
     logging:
       driver: "json-file"
       options:
-        max-size: "${LOG_MAX_SIZE}"
-        max-file: "${LOG_MAX_FILE}"
+        max-size: "${LOG_MAX_SIZE:-5m}"
+        max-file: "${LOG_MAX_FILE:-5}"