diff --git a/packages/col/src/col.vue b/packages/col/src/col.vue
index 281d0995e..4f1ed8cfe 100644
--- a/packages/col/src/col.vue
+++ b/packages/col/src/col.vue
@@ -33,7 +33,7 @@ export default {
       const padding = `${this.gutter / 2}px`;
       return this.gutter
         ? { paddingLeft: padding, paddingRight: padding }
-        : null;
+        : {};
     }
   }
 };
diff --git a/packages/row/src/row.vue b/packages/row/src/row.vue
index 374cc793a..0e4a6ae69 100644
--- a/packages/row/src/row.vue
+++ b/packages/row/src/row.vue
@@ -24,7 +24,7 @@ export default {
       const margin = `-${Number(this.gutter) / 2}px`;
       return this.gutter
         ? { marginLeft: margin, marginRight: margin }
-        : null;
+        : {};
     }
   }
 };