diff --git a/parser/parser.go b/parser/parser.go
index f856f16..2fc96fe 100644
--- a/parser/parser.go
+++ b/parser/parser.go
@@ -308,7 +308,7 @@ var g = &grammar{
 					},
 				},
 			},
-			leader:        true,
+			leader:        false,
 			leftRecursive: true,
 		},
 		{
@@ -1302,7 +1302,7 @@ var g = &grammar{
 					},
 				},
 			},
-			leader:        false,
+			leader:        true,
 			leftRecursive: true,
 		},
 		{