diff --git a/lib/class-file-reflector.php b/lib/class-file-reflector.php
index 5b01e8d..62f401d 100644
--- a/lib/class-file-reflector.php
+++ b/lib/class-file-reflector.php
@@ -171,7 +171,10 @@ public function leaveNode( \PHPParser_Node $node ) {
 				break;
 
 			case 'Stmt_Function':
-				end( $this->functions )->uses = array_pop( $this->location )->uses;
+				$function = array_pop( $this->location );
+				if ( isset( $function->uses ) && ! empty( $function->uses ) ) {
+					end( $this->functions )->uses = $function->uses;
+				}
 				break;
 
 			case 'Stmt_ClassMethod':