diff --git a/caller.go b/caller.go
index 0d8c078..f80abd3 100644
--- a/caller.go
+++ b/caller.go
@@ -82,7 +82,7 @@ func (caller *Caller) calls(opts *bind.CallOpts, calls ...*Call) ([]*Call, error
 	for i, result := range results {
 		call := calls[i] // index always matches
 		call.Failed = !result.Success
-		if err := call.Unpack(result.ReturnData); err != nil {
+		if err := call.Unpack(result.ReturnData); err != nil && !call.CanFail {
 			return calls, fmt.Errorf("failed to unpack call outputs at index [%d]: %v", i, err)
 		}
 	}