diff --git a/src/batch/BatchCaller.sol b/src/batch/BatchCaller.sol
index 55861ced..b953565d 100644
--- a/src/batch/BatchCaller.sol
+++ b/src/batch/BatchCaller.sol
@@ -78,8 +78,9 @@ abstract contract BatchCaller is SelfAuth {
   function getReturnData() private pure returns (bytes memory) {
     assembly {
       let size := returndatasize()
-      returndatacopy(0, 0, size)
-      return(0, size)
+      let data := mload(0x40)
+      returndatacopy(data, 0, size)
+      return(data, size)
     }
   }
 }