diff --git a/src/tools/clangrefactoringbackend/source/useddefines.h b/src/tools/clangrefactoringbackend/source/useddefines.h
index 99548e8aa8b..64e9b8d7e69 100644
--- a/src/tools/clangrefactoringbackend/source/useddefines.h
+++ b/src/tools/clangrefactoringbackend/source/useddefines.h
@@ -36,6 +36,7 @@ namespace ClangBackEnd {
 class UsedDefine
 {
 public:
+    constexpr UsedDefine() = default;
     UsedDefine(Utils::SmallStringView defineName, FilePathId filePathId)
         : defineName(defineName),
           filePathId(filePathId)