diff --git a/trealla/query.go b/trealla/query.go
index b509391..3335d5f 100644
--- a/trealla/query.go
+++ b/trealla/query.go
@@ -138,12 +138,7 @@ func (pl *prolog) start(ctx context.Context, goal string, options ...QueryOption
 		if err == nil {
 			q.push(ans)
 		} else {
-			if IsFailure(err) {
-				q.setError(err)
-			} else {
-				q.setError(fmt.Errorf("trealla: failed to parse query response: %w", err))
-			}
-
+			q.setError(err)
 		}
 		return q
 	}
@@ -193,12 +188,7 @@ func (q *query) redo(ctx context.Context) bool {
 		case IsFailure(err):
 			return false
 		case err != nil:
-			if !IsFailure(err) {
-				q.setError(fmt.Errorf("trealla: failed to parse query response: %w", err))
-			} else {
-				q.setError(err)
-			}
-
+			q.setError(err)
 			return false
 		}
 		q.push(ans)
diff --git a/trealla/tpl.wasm b/trealla/tpl.wasm
index 7a0e759..f62025c 100755
Binary files a/trealla/tpl.wasm and b/trealla/tpl.wasm differ
diff --git a/wapm.lock b/wapm.lock
index 93d016b..5e86a45 100644
--- a/wapm.lock
+++ b/wapm.lock
@@ -1,18 +1,18 @@
 # Lockfile v4
 # This file is automatically generated by Wapm.
 # It is not intended for manual editing. The schema of this file may change.
-[modules."guregu/trealla"."0.9.20".tpl]
+[modules."guregu/trealla"."0.9.21".tpl]
 name = "tpl"
-package_version = "0.9.20"
+package_version = "0.9.21"
 package_name = "guregu/trealla"
-package_path = "guregu/trealla@0.9.20"
-resolved = "https://registry-cdn.wapm.io/packages/guregu/trealla/trealla-0.9.20.tar.gz"
+package_path = "guregu/trealla@0.9.21"
+resolved = "https://registry-cdn.wapm.io/packages/guregu/trealla/trealla-0.9.21.tar.gz"
 resolved_source = "registry+tpl"
 abi = "wasi"
 source = "tpl.wasm"
 [commands.tpl]
 name = "tpl"
 package_name = "guregu/trealla"
-package_version = "0.9.20"
+package_version = "0.9.21"
 module = "tpl"
 is_top_level_dependency = true