diff --git a/src/msw/window.cpp b/src/msw/window.cpp
index 99ebca9e65..e0ca05bd88 100644
--- a/src/msw/window.cpp
+++ b/src/msw/window.cpp
@@ -130,8 +130,8 @@ wxWindow *wxFindWinFromHandle(WXHWND hWnd);
 static void TranslateKbdEventToMouse(wxWindow *win, int *x, int *y, WPARAM *flags);
 
 // get the current state of SHIFT/CTRL keys
-extern inline bool wxIsShiftDown() { return (GetKeyState(VK_SHIFT) & 0x100) != 0; }
-extern inline bool wxIsCtrlDown() { return (GetKeyState(VK_CONTROL) & 0x100) != 0; }
+inline bool wxIsShiftDown() { return (GetKeyState(VK_SHIFT) & 0x100) != 0; }
+inline bool wxIsCtrlDown() { return (GetKeyState(VK_CONTROL) & 0x100) != 0; }
 
 // ---------------------------------------------------------------------------
 // event tables