diff --git a/mrbgems/mruby-compiler/core/parse.y b/mrbgems/mruby-compiler/core/parse.y
index a2ae02d8f..dce985182 100644
--- a/mrbgems/mruby-compiler/core/parse.y
+++ b/mrbgems/mruby-compiler/core/parse.y
@@ -7418,12 +7418,10 @@ mrb_parser_dump(mrb_state *mrb, node *tree, int offset)
           }
         }
         n2 = n2->cdr;
-        if (n2) {
-          if (n2->car) {
-            dump_prefix(n2, offset+2);
-            printf("post:\n");
-            dump_recur(mrb, n2->car, offset+3);
-          }
+        if (n2 && n2->car) {
+          dump_prefix(n2, offset+2);
+          printf("post:\n");
+          dump_recur(mrb, n2->car, offset+3);
         }
       }
     }
diff --git a/mrbgems/mruby-compiler/core/y.tab.c b/mrbgems/mruby-compiler/core/y.tab.c
index f692dfff0..2343f7c37 100644
--- a/mrbgems/mruby-compiler/core/y.tab.c
+++ b/mrbgems/mruby-compiler/core/y.tab.c
@@ -13649,12 +13649,10 @@ mrb_parser_dump(mrb_state *mrb, node *tree, int offset)
           }
         }
         n2 = n2->cdr;
-        if (n2) {
-          if (n2->car) {
-            dump_prefix(n2, offset+2);
-            printf("post:\n");
-            dump_recur(mrb, n2->car, offset+3);
-          }
+        if (n2 && n2->car) {
+          dump_prefix(n2, offset+2);
+          printf("post:\n");
+          dump_recur(mrb, n2->car, offset+3);
         }
       }
     }