1 files changed, 4 insertions, 4 deletions
diff --git a/src/frontend/parser.y b/src/frontend/parser.y
index bd5d127..f8c574a 100644
--- a/src/frontend/parser.y
+++ b/src/frontend/parser.y
@@ -86,15 +86,15 @@ term:   factor {
     add_child($$, $1);
     add_child($$, $3);
   }
-|       un_op exp {
-    $$ = create_expr($1);
-    add_child($$, $2);
-  }
 ;
 
 factor: NUMBER {
     $$ = create_const($1);
   }
+|       un_op factor {
+    $$ = create_expr($1);
+    add_child($$, $2);
+  }
 |       L_PAREN exp R_PAREN {
     $$ = $2;
   }