diff --git a/dlls/user32/driver.c b/dlls/user32/driver.c
index 59a163c700d..7de45376740 100644
--- a/dlls/user32/driver.c
+++ b/dlls/user32/driver.c
@@ -84,7 +84,7 @@ static BOOL load_desktop_driver( HWND hwnd, HMODULE *module )
 static const USER_DRIVER *load_driver(void)
 {
     void *ptr;
-    HMODULE graphics_driver;
+    HMODULE graphics_driver = NULL;
     USER_DRIVER *driver, *prev;
 
     driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver) );