diff --git a/it/integration_test.go b/it/integration_test.go
index 0a6a253..8671181 100644
--- a/it/integration_test.go
+++ b/it/integration_test.go
@@ -91,11 +91,11 @@ func TestMigrator__integration(t *testing.T) {
 
 		switch d := data[i].value.(type) {
 		case int:
-			m[data[i].key] = d
+			m[data[i].key] = int(d)
 		case string:
-			m[data[i].key] = d
+			m[data[i].key] = string(d)
 		default:
-			t.Fatal("Unsupported data type")
+			t.Fatal("Error: unsupported data type")
 		}
 		client.Write(data[i].path, m, "1")