diff --git a/projectfiles/CodeBlocks/wesnoth.cbp b/projectfiles/CodeBlocks/wesnoth.cbp
index 7aab681b18c..2b36afcc515 100644
--- a/projectfiles/CodeBlocks/wesnoth.cbp
+++ b/projectfiles/CodeBlocks/wesnoth.cbp
@@ -1198,6 +1198,7 @@
 		<Unit filename="../../src/utils/name_generator.hpp" />
 		<Unit filename="../../src/utils/name_generator_factory.cpp" />
 		<Unit filename="../../src/utils/name_generator_factory.hpp" />
+		<Unit filename="../../src/utils/optional_fwd.hpp" />
 		<Unit filename="../../src/utils/parse_network_address.cpp" />
 		<Unit filename="../../src/utils/parse_network_address.hpp" />
 		<Unit filename="../../src/utils/reference_counter.hpp" />