diff --git a/src/text/template/multi_test.go b/src/text/template/multi_test.go
index 5d8c08f..5769470 100644
--- a/src/text/template/multi_test.go
+++ b/src/text/template/multi_test.go
@@ -247,6 +247,9 @@
 		t.Fatal(err)
 	}
 	added, err := root.AddParseTree("c", tree["c"])
+	if err != nil {
+		t.Fatal(err)
+	}
 	// Execute.
 	var b bytes.Buffer
 	err = added.ExecuteTemplate(&b, "a", 0)