diff --git a/mmc.h b/mmc.h
index 5285865..a007b6b 100644
--- a/mmc.h
+++ b/mmc.h
@@ -16,11 +16,13 @@
 
 #include <asm-generic/int-ll64.h>
 #include <linux/mmc/ioctl.h>
-#include <linux/major.h>
 #include <stdio.h>
 
 #define CHECK(expr, msg, err_stmt) { if (expr) { fprintf(stderr, msg); err_stmt; } }
 
+/* From kernel linux/major.h */
+#define MMC_BLOCK_MAJOR			179
+
 /* From kernel linux/mmc/mmc.h */
 #define MMC_SWITCH		6	/* ac	[31:0] See below	R1b */
 #define MMC_SEND_EXT_CSD	8	/* adtc				R1  */