1 files changed, 5 insertions, 3 deletions

diff --git a/server/helpers/custom-validators/videos.ts b/server/helpers/custom-validators/videos.ts
index c35db49ac..002324fe0 100644
--- a/server/helpers/custom-validators/videos.ts
+++ b/server/helpers/custom-validators/videos.ts
@@ -57,9 +57,11 @@ function isVideoTagValid (tag: string) {
 }
 
 function isVideoTagsValid (tags: string[]) {
-  return isArray(tags) &&
-         validator.isInt(tags.length.toString(), VIDEOS_CONSTRAINTS_FIELDS.TAGS) &&
-         tags.every(tag => isVideoTagValid(tag))
+  return tags === null || (
+    isArray(tags) &&
+    validator.isInt(tags.length.toString(), VIDEOS_CONSTRAINTS_FIELDS.TAGS) &&
+    tags.every(tag => isVideoTagValid(tag))
+  )
 }
 
 function isVideoAbuseReasonValid (value: string) {