diff --git a/changelog/unreleased/fix-metadata-storage-upload-ifnotexist.md b/changelog/unreleased/fix-metadata-storage-upload-ifnotexist.md
new file mode 100644
index 00000000000..295a2a1b8da
--- /dev/null
+++ b/changelog/unreleased/fix-metadata-storage-upload-ifnotexist.md
@@ -0,0 +1,3 @@
+Bugfix: Respect IfNotExist option when uploading in cs3 metadata storage
+
+https://github.com/cs3org/reva/pull/4528
diff --git a/pkg/storage/utils/metadata/cs3.go b/pkg/storage/utils/metadata/cs3.go
index c39cae9e0e4..bb41c90bcff 100644
--- a/pkg/storage/utils/metadata/cs3.go
+++ b/pkg/storage/utils/metadata/cs3.go
@@ -165,7 +165,9 @@ func (cs3 *CS3) Upload(ctx context.Context, req UploadRequest) (*UploadResponse,
 	}
 	if len(req.IfNoneMatch) > 0 {
 		if req.IfNoneMatch[0] == "*" {
-			ifuReq.Options = &provider.InitiateFileUploadRequest_IfNotExist{}
+			ifuReq.Options = &provider.InitiateFileUploadRequest_IfNotExist{
+				true,
+			}
 		}
 		// else {
 		//   the http upload will carry all if-not-match etags