diff --git a/drivers/video/intelfb/intelfb.h b/drivers/video/intelfb/intelfb.h
index abdadc2a1b4..80b94c19a9f 100644
--- a/drivers/video/intelfb/intelfb.h
+++ b/drivers/video/intelfb/intelfb.h
@@ -278,7 +278,7 @@ struct intelfb_info {
 	u8 fbmem_gart;
 
 	/* mtrr support */
-	u32 mtrr_reg;
+	int mtrr_reg;
 	u32 has_mtrr;
 
 	/* heap data */