diff --git a/src/api/posts.js b/src/api/posts.js
index ae2cbecbac..30b4ba79f6 100644
--- a/src/api/posts.js
+++ b/src/api/posts.js
@@ -216,7 +216,7 @@ async function deleteOrRestoreTopicOf(command, pid, caller) {
 }
 
 postsAPI.purge = async function (caller, data) {
-	if (!data || !parseInt(data.pid, 10)) {
+	if (!data || !data.pid) {
 		throw new Error('[[error:invalid-data]]');
 	}