diff --git a/specification/resources/resource-manager/readme.go.md b/specification/resources/resource-manager/readme.go.md
index 109a5fa7fa82..ffbb701fc5e1 100644
--- a/specification/resources/resource-manager/readme.go.md
+++ b/specification/resources/resource-manager/readme.go.md
@@ -8,7 +8,7 @@ These settings apply only when `--go` is specified on the command line.
 directive:
   from: swagger-document # do it globally
   where: $.paths..parameters[?(@.name == "resourceGroupName" || @.name == "sourceResourceGroupName")].pattern
-  set: ^[-\p{L}\._\(\)]+$ 
+  set: ^[-\p{L}\._\(\)\w]+$ 
   reason: Necessary to match Unicode characters in the Go regexp engine.
 ```