diff --git a/src/trealla b/src/trealla
index ec1d63e..568fa27 160000
--- a/src/trealla
+++ b/src/trealla
@@ -1 +1 @@
-Subproject commit ec1d63e14c9beef6513a3fe01e24394284e1ecab
+Subproject commit 568fa271a8143eac2b1b21409f6503b1984caf59
diff --git a/trealla/answer.go b/trealla/answer.go
index f876507..d5e2ca2 100644
--- a/trealla/answer.go
+++ b/trealla/answer.go
@@ -21,7 +21,7 @@ type Answer struct {
 
 type response struct {
 	Answer
-	Result queryStatus
+	Status queryStatus
 	Error  json.RawMessage // ball
 }
 
@@ -68,7 +68,7 @@ func (pl *prolog) parse(goal, stdout, stderr string) (Answer, error) {
 		return resp.Answer, fmt.Errorf("trealla: decoding error: %w", err)
 	}
 
-	switch resp.Result {
+	switch resp.Status {
 	case statusSuccess:
 		return resp.Answer, nil
 	case statusFailure:
@@ -80,7 +80,7 @@ func (pl *prolog) parse(goal, stdout, stderr string) (Answer, error) {
 		}
 		return resp.Answer, ErrThrow{Query: goal, Ball: ball, Stdout: output, Stderr: stderr}
 	default:
-		return resp.Answer, fmt.Errorf("trealla: unexpected query status: %v", resp.Result)
+		return resp.Answer, fmt.Errorf("trealla: unexpected query status: %v", resp.Status)
 	}
 }
 
diff --git a/trealla/libtpl.wasm b/trealla/libtpl.wasm
index c5e0823..9ea70d2 100755
Binary files a/trealla/libtpl.wasm and b/trealla/libtpl.wasm differ
diff --git a/trealla/query.go b/trealla/query.go
index 372d96d..bcf1b17 100644
--- a/trealla/query.go
+++ b/trealla/query.go
@@ -106,7 +106,7 @@ func (pl *prolog) start(ctx context.Context, goal string, options ...QueryOption
 				ch <- fmt.Errorf("trealla: panic: %v", ex)
 			}
 		}()
-		v, err := pl.pl_query(pl.ptr, goalstr.ptr, subqptr)
+		v, err := pl.pl_query(pl.ptr, goalstr.ptr, subqptr, 0)
 		if err == nil {
 			ret = v.(int32)
 		}