diff --git a/api/api/openapi.bundle.yaml b/api/api/openapi.bundle.yaml
index 84cc29a6e..592bb7343 100644
--- a/api/api/openapi.bundle.yaml
+++ b/api/api/openapi.bundle.yaml
@@ -2305,7 +2305,7 @@ components:
             $ref: '#/components/schemas/EnsemblerStandardConfig_experiment_mappings'
           type: array
         route_name_path:
-          pattern: ^\w+(?:\.\w+)*$
+          pattern: ^\w*(?:\.\w+)*$
           type: string
       required:
       - experiment_mappings
diff --git a/api/api/specs/routers.yaml b/api/api/specs/routers.yaml
index a350da627..650d2db8f 100644
--- a/api/api/specs/routers.yaml
+++ b/api/api/specs/routers.yaml
@@ -800,7 +800,7 @@ components:
                 example: "route-1"
         route_name_path:
           type: "string"
-          pattern: '^\w+(?:\.\w+)*$'
+          pattern: '^\w*(?:\.\w+)*$'
 
     EnsemblerDockerConfig:
       description: "ensembler config when ensembler type is docker"