diff --git a/parser/parser.go b/parser/parser.go
index a4b42c2..f881757 100644
--- a/parser/parser.go
+++ b/parser/parser.go
@@ -309,7 +309,7 @@ var g = &grammar{
 					},
 				},
 			},
-			leader:        true,
+			leader:        false,
 			leftRecursive: true,
 		},
 		{
@@ -1309,7 +1309,7 @@ var g = &grammar{
 					},
 				},
 			},
-			leader:        false,
+			leader:        true,
 			leftRecursive: true,
 		},
 		{