diff --git a/data/api/client-server/voip.yaml b/data/api/client-server/voip.yaml
index 8c41da21..58510706 100644
--- a/data/api/client-server/voip.yaml
+++ b/data/api/client-server/voip.yaml
@@ -45,7 +45,7 @@ paths:
                     items:
                       type: string
                       format: uri
-                      pattern: "$turns?:"
+                      pattern: "^turns?:"
                     description: A list of TURN URIs
                   ttl:
                     type: integer