diff --git a/net/server/internal/api_getChannelTopics.go b/net/server/internal/api_getChannelTopics.go
index 9172f473..f3798565 100644
--- a/net/server/internal/api_getChannelTopics.go
+++ b/net/server/internal/api_getChannelTopics.go
@@ -141,7 +141,9 @@ func GetChannelTopics(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	w.Header().Set("topic-revision", strconv.FormatInt(channelSlot.Revision, 10))
+  if !endSet {
+	  w.Header().Set("topic-revision", strconv.FormatInt(channelSlot.Revision, 10))
+  }
 	w.Header().Set("Access-Control-Expose-Headers", "*")
 	WriteResponse(w, response)
 }