diff --git a/widget/windows/KeyboardLayout.h b/widget/windows/KeyboardLayout.h
index 47c3cd2030ed..bd29933ebe32 100644
--- a/widget/windows/KeyboardLayout.h
+++ b/widget/windows/KeyboardLayout.h
@@ -41,6 +41,17 @@ struct nsModifierKeyState;
 namespace mozilla {
 namespace widget {
 
+static const uint32_t sModifierKeyMap[][3] = {
+  { nsIWidget::CAPS_LOCK, VK_CAPITAL, 0 },
+  { nsIWidget::NUM_LOCK,  VK_NUMLOCK, 0 },
+  { nsIWidget::SHIFT_L,   VK_SHIFT,   VK_LSHIFT },
+  { nsIWidget::SHIFT_R,   VK_SHIFT,   VK_RSHIFT },
+  { nsIWidget::CTRL_L,    VK_CONTROL, VK_LCONTROL },
+  { nsIWidget::CTRL_R,    VK_CONTROL, VK_RCONTROL },
+  { nsIWidget::ALT_L,     VK_MENU,    VK_LMENU },
+  { nsIWidget::ALT_R,     VK_MENU,    VK_RMENU }
+};
+
 class KeyboardLayout;
 
 class ModifierKeyState {
diff --git a/widget/windows/WinUtils.cpp b/widget/windows/WinUtils.cpp
index 79eab005d11b..e20de9be21d2 100644
--- a/widget/windows/WinUtils.cpp
+++ b/widget/windows/WinUtils.cpp
@@ -7,6 +7,7 @@
 #include "WinUtils.h"
 #include "nsWindow.h"
 #include "nsWindowDefs.h"
+#include "KeyboardLayout.h"
 #include "nsGUIEvent.h"
 #include "nsIDOMMouseEvent.h"
 #include "mozilla/Preferences.h"
diff --git a/widget/windows/nsWindowDefs.h b/widget/windows/nsWindowDefs.h
index 85a466289a62..56200d9572a1 100644
--- a/widget/windows/nsWindowDefs.h
+++ b/widget/windows/nsWindowDefs.h
@@ -197,17 +197,6 @@ const char kClassNameDialog[]        = "MozillaDialogClass";
 const char kClassNameDropShadow[]    = "MozillaDropShadowWindowClass";
 const char kClassNameTemp[]          = "MozillaTempWindowClass";
 
-static const uint32_t sModifierKeyMap[][3] = {
-  { nsIWidget::CAPS_LOCK, VK_CAPITAL, 0 },
-  { nsIWidget::NUM_LOCK,  VK_NUMLOCK, 0 },
-  { nsIWidget::SHIFT_L,   VK_SHIFT,   VK_LSHIFT },
-  { nsIWidget::SHIFT_R,   VK_SHIFT,   VK_RSHIFT },
-  { nsIWidget::CTRL_L,    VK_CONTROL, VK_LCONTROL },
-  { nsIWidget::CTRL_R,    VK_CONTROL, VK_RCONTROL },
-  { nsIWidget::ALT_L,     VK_MENU,    VK_LMENU },
-  { nsIWidget::ALT_R,     VK_MENU,    VK_RMENU }
-};
-
 /**************************************************************
  *
  * SECTION: structs