diff --git a/docker/alpine/Dockerfile.build b/docker/alpine/Dockerfile.build
index a60dd72a..70d55c88 100644
--- a/docker/alpine/Dockerfile.build
+++ b/docker/alpine/Dockerfile.build
@@ -18,9 +18,10 @@ FROM node:12-alpine3.11 as main
 WORKDIR /app
 ENV NODE_ENV=production \
     CONFIG_FILE=/app/data/config/config.json \
-    Server-Database-dbFolder=/app/data/db \
-    Server-Media-folder=/app/data/images \
-    Server-Media-tempFolder=/app/data/tmp
+    # overrides only the default value of the settings (the actualy value can be overwritten through config.json)
+    default-Server-Database-dbFolder=/app/data/db \
+    default-Server-Media-folder=/app/data/images \
+    default-Server-Media-tempFolder=/app/data/tmp
 # command line arg orverride the config.json with these settings
 ENTRYPOINT ["node", "./src/backend/index",  \
   # after a extensive job (like video converting), pigallery calls gc, to clean up everthing as fast as possible
diff --git a/docker/debian-stretch/Dockerfile.build b/docker/debian-stretch/Dockerfile.build
index c3b422f1..d29d78ff 100644
--- a/docker/debian-stretch/Dockerfile.build
+++ b/docker/debian-stretch/Dockerfile.build
@@ -16,9 +16,10 @@ FROM node:12-stretch-slim as main
 WORKDIR /app
 ENV NODE_ENV=production \
     CONFIG_FILE=/app/data/config/config.json \
-    Server-Database-dbFolder=/app/data/db \
-    Server-Media-folder=/app/data/images \
-    Server-Media-tempFolder=/app/data/tmp
+    # overrides only the default value of the settings (the actualy value can be overwritten through config.json)
+    default-Server-Database-dbFolder=/app/data/db \
+    default-Server-Media-folder=/app/data/images \
+    default-Server-Media-tempFolder=/app/data/tmp
 # command line arg orverride the config.json with these settings
 ENTRYPOINT ["node", "./src/backend/index",  \
   # after a extensive job (like video converting), pigallery calls gc, to clean up everthing as fast as possible