diff --git a/cql3/expr/restrictions.hh b/cql3/expr/restrictions.hh
index c8dbfb8057..a503766adc 100644
--- a/cql3/expr/restrictions.hh
+++ b/cql3/expr/restrictions.hh
@@ -6,6 +6,8 @@
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 
+#pragma once
+
 #include "expression.hh"
 
 namespace cql3 {