diff --git a/UserAd_class.py b/UserAd_class.py
index 5bf6625..5fa6747 100644
--- a/UserAd_class.py
+++ b/UserAd_class.py
@@ -66,7 +66,8 @@ class UserAd:
     def set_passwd(self):
         self.sam.transaction_start()
         try:
-            self.sam.setpassword("&(objectClass=user)(samAccountName=%s)" % ldb.binary_encode(self.usrName), self.usrPass, False)
+            self.sam.setpassword("(&(objectClass=user)(samAccountName=%s))" % ldb.binary_encode(self.usrName),
+                                 self.usrPass, False)
         except Exception as exc:
             self.sam.transaction_cancel()
             return exc
@@ -119,7 +120,7 @@ class UserAd:
     def disable(self):
         self.sam.transaction_start()
         try:
-            self.sam.disable_account("&(objectClass=user)(samAccountName=%s)" % ldb.binary_encode(self.usrName))
+            self.sam.disable_account("(&(objectClass=user)(samAccountName=%s))" % ldb.binary_encode(self.usrName))
         except Exception as exc:
             self.sam.transaction_cancel()
             return exc
@@ -129,7 +130,7 @@ class UserAd:
     def enable(self):
         self.sam.transaction_start()
         try:
-            self.sam.enable_account("&(objectClass=user)(samAccountName=%s)" % ldb.binary_encode(self.usrName))
+            self.sam.enable_account("(&(objectClass=user)(samAccountName=%s))" % ldb.binary_encode(self.usrName))
         except Exception as exc:
             self.sam.transaction_cancel()
             return exc