diff --git a/src/win32_fullscreen.c b/src/win32_fullscreen.c
index 35d75054..045fecab 100644
--- a/src/win32_fullscreen.c
+++ b/src/win32_fullscreen.c
@@ -130,7 +130,7 @@ void _glfwSetVideoMode(int* width, int* height,
     closestRate   = *refreshRate;
 
     if (getClosestVideoMode(&closestWidth, &closestHeight,
-                            &closestBPP, &closestRate, GL_FALSE))
+                            &closestBPP, &closestRate, exactBPP))
     {
         dm.dmSize = sizeof(DEVMODE);
         dm.dmFields     = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL;