diff --git a/scripts/prepare_build.sh b/scripts/prepare_build.sh
index 39806901274..7abadef5e89 100644
--- a/scripts/prepare_build.sh
+++ b/scripts/prepare_build.sh
@@ -27,11 +27,9 @@ fi
 cp config/database.yml.$GITLAB_DATABASE config/database.yml
 
 if [ "$GITLAB_DATABASE" = 'postgresql' ]; then
-    sed -i 's/# host:.*/host: postgres/g' config/database.yml
+    sed -i 's/localhost/postgres/g' config/database.yml
 else # Assume it's mysql
-    sed -i 's/username:.*/username: root/g' config/database.yml
-    sed -i 's/password:.*/password:/g' config/database.yml
-    sed -i 's/# host:.*/host: mysql/g' config/database.yml
+    sed -i 's/localhost/mysql/g' config/database.yml
 fi
 
 cp config/resque.yml.example config/resque.yml