[API] Fix bug

1 files changed, 2 insertions, 2 deletions

diff --git a/src/api/endpoints/users/posts.ts b/src/api/endpoints/users/posts.ts
index 770831c426..78f91b16c5 100644
--- a/src/api/endpoints/users/posts.ts
+++ b/src/api/endpoints/users/posts.ts
@@ -26,7 +26,7 @@ module.exports = (params, me) =>
 	const [username, usernameErr] = it(params.username, 'string');
 	if (usernameErr) return rej('invalid username param');
 
-	if (userId === null && username === null) {
+	if (userId === undefined && username === undefined) {
 		return rej('user_id or username is required');
 	}
 
@@ -55,7 +55,7 @@ module.exports = (params, me) =>
 		return rej('cannot set since_id and max_id');
 	}
 
-	const q = userId != null
+	const q = userId !== undefined
 		? { _id: userId }
 		: { username_lower: username.toLowerCase() } ;