diff --git a/docker-compose-apps.yaml b/docker-compose-apps.yaml
index 03c924f..d39aa6e 100644
--- a/docker-compose-apps.yaml
+++ b/docker-compose-apps.yaml
@@ -86,7 +86,7 @@ services:
       - rc_datavolume:/var/opt/rhodecode_data
 
     tmpfs:
-      - /data_ramdisk:size=${RC_DATA_RAMDISK_SIZE:?specify-RC_DATA_RAMDISK_SIZE-env-var}
+      - /data_ramdisk:size=${RC_DATA_RAMDISK_SIZE:-256M}
 
     logging:
       *custom-logging