diff --git a/src/libs/solutions/tasking/tasktree.cpp b/src/libs/solutions/tasking/tasktree.cpp
index 99e6de10903..d9e55b78c53 100644
--- a/src/libs/solutions/tasking/tasktree.cpp
+++ b/src/libs/solutions/tasking/tasktree.cpp
@@ -1258,7 +1258,7 @@ public:
     std::map<QThread *, StorageThreadData> m_threadDataMap = {};
 };
 
-StorageBase::StorageBase(StorageConstructor ctor, StorageDestructor dtor)
+StorageBase::StorageBase(const StorageConstructor &ctor, const StorageDestructor &dtor)
     : m_storageData(new StorageData{ctor, dtor})
 {}
 
diff --git a/src/libs/solutions/tasking/tasktree.h b/src/libs/solutions/tasking/tasktree.h
index 2f39932ab26..5d600268c23 100644
--- a/src/libs/solutions/tasking/tasktree.h
+++ b/src/libs/solutions/tasking/tasktree.h
@@ -103,7 +103,7 @@ private:
     using StorageDestructor = std::function<void(void *)>;
     using StorageHandler = std::function<void(void *)>;
 
-    StorageBase(StorageConstructor ctor, StorageDestructor dtor);
+    StorageBase(const StorageConstructor &ctor, const StorageDestructor &dtor);
 
     void *activeStorageVoid() const;