diff --git a/api-spec/schemas/apitypes.yaml b/api-spec/schemas/apitypes.yaml
index 599248f..bd023c9 100644
--- a/api-spec/schemas/apitypes.yaml
+++ b/api-spec/schemas/apitypes.yaml
@@ -125,7 +125,7 @@ WakuMessage:
 PushRequest:
   type: object
   properties:
-    pusbsubTopic:
+    pubsubTopic:
       $ref: '#/PubsubTopic'
     message:
       $ref: '#/WakuMessage'