diff --git a/openapi/definitions.yaml b/openapi/definitions.yaml
index 18952ea5..0091a0a4 100644
--- a/openapi/definitions.yaml
+++ b/openapi/definitions.yaml
@@ -1595,8 +1595,8 @@ Ulid:
   format: Ulid
   x-import: '@pagopa/ts-commons/lib/strings'
   example: 01ARZ3NDEKTSV4RRFFQ69G5FAV
-UrlSafeServiceId:
+PathTraversalSafePathParam:
   description:
-    A non empty string that is safe to be used in an url parameter
+    A non empty string that is safe to be used in an url parameter to avoid path traversal attacks
   type: string
-  pattern: "^[0-9a-zA-Z\\-]+$"
\ No newline at end of file
+  pattern: "^[0-9a-zA-Z\\-\\._\\/+]+$"
\ No newline at end of file