diff --git a/src/evaluate/declaration.ts b/src/evaluate/declaration.ts
index cccab48..ee70e7f 100644
--- a/src/evaluate/declaration.ts
+++ b/src/evaluate/declaration.ts
@@ -194,7 +194,7 @@ export function* PropertyDefinition(node: acorn.PropertyDefinition, scope: Scope
 
   if (!node.value) {
     obj[key] = undefined
-  } if (node.value.type === 'FunctionExpression' || node.value.type === 'ArrowFunctionExpression') {
+  } else if (node.value.type === 'FunctionExpression' || node.value.type === 'ArrowFunctionExpression') {
     obj[key] = createFunc(node.value, subScope, { superClass })
   } else {
     obj[key] = yield* evaluate(node.value, subScope)