diff --git a/src/corelib/io/qfsfileengine_p.h b/src/corelib/io/qfsfileengine_p.h
index 732d3112462..c88351d2c5e 100644
--- a/src/corelib/io/qfsfileengine_p.h
+++ b/src/corelib/io/qfsfileengine_p.h
@@ -152,7 +152,7 @@ public:
     bool isSequentialFdFh() const;
 #endif
 #ifdef Q_OS_WIN
-    bool nativeRenameOverwrite(const QString &newName) const;
+    bool nativeRenameOverwrite(const QString &newName);
 #endif
 
     uchar *map(qint64 offset, qint64 size, QFile::MemoryMapFlags flags);
diff --git a/src/corelib/io/qfsfileengine_win.cpp b/src/corelib/io/qfsfileengine_win.cpp
index 3685a3cde59..d3439d61fab 100644
--- a/src/corelib/io/qfsfileengine_win.cpp
+++ b/src/corelib/io/qfsfileengine_win.cpp
@@ -396,7 +396,7 @@ bool QFSFileEnginePrivate::nativeIsSequential() const
             || (fileType == FILE_TYPE_PIPE);
 }
 
-bool QFSFileEnginePrivate::nativeRenameOverwrite(const QString &newName) const
+bool QFSFileEnginePrivate::nativeRenameOverwrite(const QString &newName)
 {
     if (fileHandle == INVALID_HANDLE_VALUE)
         return false;