diff --git a/internal/provider/provider_test.go b/internal/provider/provider_test.go
index 6dc5042..640f37e 100644
--- a/internal/provider/provider_test.go
+++ b/internal/provider/provider_test.go
@@ -77,6 +77,9 @@ func (c *Config) String(t *testing.T) string {
 	if c.RegionCode != "" {
 		write("region_code = %q \n", c.RegionCode)
 	}
+	if c.VpcID != 0 {
+		write("vpc_id = %d \n", c.VpcID)
+	}
 	write(`
 			milli_cpu  = %d
 			memory_gb  = %d