diff --git a/Libs/PluginFramework/ctkLDAPExpr.cpp b/Libs/PluginFramework/ctkLDAPExpr.cpp
index 27fa014053..4e6242eec2 100644
--- a/Libs/PluginFramework/ctkLDAPExpr.cpp
+++ b/Libs/PluginFramework/ctkLDAPExpr.cpp
@@ -620,7 +620,7 @@ QString ctkLDAPExpr::ParseState::getAttributeName()
     }
   }
   if (n == -1) {
-    return QString()( );
+    return QString();
   }
   return m_str.mid(start, n);
 }