diff --git a/registry/storage/driver/s3-aws/s3_test.go b/registry/storage/driver/s3-aws/s3_test.go
index a1347c472..aea26658e 100644
--- a/registry/storage/driver/s3-aws/s3_test.go
+++ b/registry/storage/driver/s3-aws/s3_test.go
@@ -108,7 +108,7 @@ func init() {
 
 	// Skip S3 storage driver tests if environment variable parameters are not provided
 	skipS3 = func() string {
-		if accessKey == "" || secretKey == "" || bucket == "" || encrypt == "" {
+		if accessKey == "" || secretKey == "" || region == "" || bucket == "" || encrypt == "" {
 			return "Must set AWS_ACCESS_KEY, AWS_SECRET_KEY, AWS_REGION, S3_BUCKET, and S3_ENCRYPT to run S3 tests"
 		}
 		return ""