diff --git a/internal/grpc/services/gateway/storageprovider.go b/internal/grpc/services/gateway/storageprovider.go
index 95cc91f37fd..a4ec8c4bb23 100644
--- a/internal/grpc/services/gateway/storageprovider.go
+++ b/internal/grpc/services/gateway/storageprovider.go
@@ -66,7 +66,8 @@ func (s *svc) sign(_ context.Context, target, versionKey string) (string, error)
 			Audience:  "reva",
 			IssuedAt:  time.Now().Unix(),
 		},
-		Target: target,
+		Target:     target,
+		VersionKey: versionKey,
 	}
 
 	t := jwt.NewWithClaims(jwt.GetSigningMethod("HS256"), claims)
@@ -475,7 +476,7 @@ func versionKey(req *provider.InitiateFileDownloadRequest) string {
 	if req.Opaque == nil || req.Opaque.Map == nil {
 		return ""
 	}
-	val := req.Opaque.Map["versionKey"]
+	val := req.Opaque.Map["version_key"]
 	if val == nil {
 		return ""
 	}