diff --git a/minio/resource_minio_ilm_tier.go b/minio/resource_minio_ilm_tier.go
index 76280fa5..173f1820 100644
--- a/minio/resource_minio_ilm_tier.go
+++ b/minio/resource_minio_ilm_tier.go
@@ -224,7 +224,7 @@ func minioCreateILMTier(ctx context.Context, d *schema.ResourceData, meta interf
 			gcsOptions = append(gcsOptions, madmin.GCSPrefix(d.Get("prefix").(string)))
 		}
 		if d.Get("region").(string) != "" {
-			gcsOptions = append(gcsOptions, madmin.GCSPrefix(d.Get("region").(string)))
+			gcsOptions = append(gcsOptions, madmin.GCSRegion(d.Get("region").(string)))
 		}
 		if _, ok := gcsConfig["storage_class"]; ok {
 			gcsOptions = append(gcsOptions, madmin.GCSStorageClass(gcsConfig["storage_class"].(string)))