diff --git a/packages/backend/test-federation/.gitignore b/packages/backend/test-federation/.gitignore
index e00f952cb5..fd31053063 100644
--- a/packages/backend/test-federation/.gitignore
+++ b/packages/backend/test-federation/.gitignore
@@ -4,3 +4,4 @@ volumes
 docker.env
 *.test.conf
 *.test.default.yml
+*.test.config.json
diff --git a/packages/backend/test-federation/setup.sh b/packages/backend/test-federation/setup.sh
index 15aa2eee7f..f0e280d4dc 100644
--- a/packages/backend/test-federation/setup.sh
+++ b/packages/backend/test-federation/setup.sh
@@ -28,7 +28,7 @@ function generate {
     -days 500
   if [ ! -f .config/docker.env ]; then cp .config/example.docker.env .config/docker.env; fi
   if [ ! -f .config/$1.conf ]; then sed "s/\${HOST}/$1/g" .config/example.conf > .config/$1.conf; fi
-  if [ ! -f .config/$1.default.yml ]; then sed "s/\${HOST}/$1/g" .config/example.config.json > .config/$1.config.json; fi
+  if [ ! -f .config/$1.config.json ]; then sed "s/\${HOST}/$1/g" .config/example.config.json > .config/$1.config.json; fi
 }
 
 generate a.test