diff --git a/auth/ldap/auth.php b/auth/ldap/auth.php
index fed0bae7aad..e8abd12ce3f 100644
--- a/auth/ldap/auth.php
+++ b/auth/ldap/auth.php
@@ -711,7 +711,7 @@ class auth_plugin_ldap extends auth_plugin_base {
 /// User removal
         // Find users in DB that aren't in ldap -- to be removed!
         // this is still not as scalable (but how often do we mass delete?)
-        if ($this->config->removeuser !== AUTH_REMOVEUSER_KEEP) {
+        if ($this->config->removeuser != AUTH_REMOVEUSER_KEEP) {
             $sql = 'SELECT u.*
                       FROM {user} u
                       LEFT JOIN {tmp_extuser} e ON (u.username = e.username AND u.mnethostid = e.mnethostid)