diff --git a/redo/ui_windows.h b/redo/ui_windows.h
index 4d69b2d0..91ae9212 100644
--- a/redo/ui_windows.h
+++ b/redo/ui_windows.h
@@ -12,9 +12,9 @@ _UI_EXTERN HWND uiWindowsUtilCreateControlHWND(DWORD dwExStyle, LPCWSTR lpClassN
 _UI_EXTERN void uiWindowsUtilDestroy(HWND hwnd);
 _UI_EXTERN void uiWindowsUtilSetParent(HWND hwnd, uiControl *parent);
 _UI_EXTERN void uiWindowsUtilResize(HWND hwnd, intmax_t x, intmax_t y, intmax_t width, intmax_t height, uiSizing *d);
-_UI_EXTERN void uiWIndowsUtilShow(HWND hwnd);
+_UI_EXTERN void uiWindowsUtilShow(HWND hwnd);
 _UI_EXTERN void uiWindowsUtilHide(HWND hwnd);
-_UI_EXTERN void uiWIndowsUtilEnable(HWND hwnd);
+_UI_EXTERN void uiWindowsUtilEnable(HWND hwnd);
 _UI_EXTERN void uiWindowsUtilDisable(HWND hwnd);
 _UI_EXTERN uintptr_t uiWindowsUtilStartZOrder(HWND hwnd);
 _UI_EXTERN uintptr_t uiWindowsUtilSetZOrder(HWND hwnd, uintptr_t insertAfter);
diff --git a/redo/windows/spinbox.c b/redo/windows/spinbox.c
index c9ee478c..70ee5d45 100644
--- a/redo/windows/spinbox.c
+++ b/redo/windows/spinbox.c
@@ -116,7 +116,7 @@ static void recreateUpDown(struct spinbox *s)
 		SendMessageW(s->updown, UDM_SETPOS32, 0, (LPARAM) current);
 	}
 	if (uiControlContainerVisible(uiControl(s)))
-		uiWIndowsUtilShow(s->updown);
+		uiWindowsUtilShow(s->updown);
 	s->inhibitChanged = FALSE;
 }
 
@@ -135,10 +135,10 @@ static void spinboxResize(uiControl *c, intmax_t x, intmax_t y, intmax_t width,
 		f(s->hwnd); \
 		f(s->updown); \
 	}
-COMMIT(Show, uiWIndowsUtilShow)
-COMMIT(Hide, uiWIndowsUtilHide)
-COMMIT(Enable, uiWIndowsUtilEnable)
-COMMIT(Disable, uiWIndowsUtilDisable)
+COMMIT(Show, uiWindowsUtilShow)
+COMMIT(Hide, uiWindowsUtilHide)
+COMMIT(Enable, uiWindowsUtilEnable)
+COMMIT(Disable, uiWindowsUtilDisable)
 
 // TODO does it go here relative of other things?
 static void defaultOnChanged(uiSpinbox *s, void *data)