diff --git a/src/components/Controls/Base.vue b/src/components/Controls/Base.vue
index 8c9bac3b..79db3bae 100644
--- a/src/components/Controls/Base.vue
+++ b/src/components/Controls/Base.vue
@@ -69,6 +69,9 @@ export default {
     },
     triggerChange(value) {
       value = this.parse(value);
+      if (value === '') {
+        value = null;
+      }
       this.$emit('change', value);
     },
     parse(value) {