diff --git a/packages/editor-skeleton/src/transducers/parse-props.ts b/packages/editor-skeleton/src/transducers/parse-props.ts
index 06eb544d9..bbed2ee11 100644
--- a/packages/editor-skeleton/src/transducers/parse-props.ts
+++ b/packages/editor-skeleton/src/transducers/parse-props.ts
@@ -188,7 +188,7 @@ function propTypeToSetter(propType: PropType): SetterType {
   };
 }
 
-const EVENT_RE = /^on|after[A-Z][\w]*$/;
+const EVENT_RE = /^on|after|before[A-Z][\w]*$/;
 
 export default function(metadata: TransformedComponentMetadata): TransformedComponentMetadata {
   const { configure = {} } = metadata;