diff --git a/bytes/regexp_test.go b/bytes/regexp_test.go
index 6c77b92..6f59306 100644
--- a/bytes/regexp_test.go
+++ b/bytes/regexp_test.go
@@ -58,7 +58,13 @@ func TestRegexp(t *testing.T) {
 		test.ErrorIs(t, err, expectedErr)
 		test.False(t, succeeded)
 	})
-	t.Run("returns a useful Got value", Todo)
+	t.Run("returns a useful Got value", func(t *testing.T) {
+		p := pbytes.Regexp("hello")
+		result, err := p(gigaparsec.MakeState(strings.NewReader("hellaparsec")))
+
+		must.NoError(t, err)
+		test.StrContains(t, result.Message().Got(), "hella")
+	})
 }
 
 func TestRuneReader(t *testing.T) {