diff --git a/server/server.go b/server/server.go
index ee2da76a..8e2f6992 100644
--- a/server/server.go
+++ b/server/server.go
@@ -1025,7 +1025,8 @@ func (s *Server) parsePublishParams(r *http.Request, m *message) (cache bool, fi
 	}
 	template = readBoolParam(r, false, "x-template", "template", "tpl")
 	unifiedpush = readBoolParam(r, false, "x-unifiedpush", "unifiedpush", "up") // see GET too!
-	if unifiedpush {
+	contentEncoding := readParam(r, "content-encoding")
+	if unifiedpush || contentEncoding == "aes128gcm" {
 		firebase = false
 		unifiedpush = true
 	}