diff --git a/drivers/gpu/drm/nouveau/nv04_instmem.c b/drivers/gpu/drm/nouveau/nv04_instmem.c
index a20c206625a2..a3b9563a6f60 100644
--- a/drivers/gpu/drm/nouveau/nv04_instmem.c
+++ b/drivers/gpu/drm/nouveau/nv04_instmem.c
@@ -30,7 +30,7 @@ nv04_instmem_determine_amount(struct drm_device *dev)
 		 * of vram.  For now, only reserve a small piece until we know
 		 * more about what each chipset requires.
 		 */
-		switch (dev_priv->chipset & 0xf0) {
+		switch (dev_priv->chipset) {
 		case 0x40:
 		case 0x47:
 		case 0x49: