diff --git a/src/kernel/fbdev/radeonfb/radeonfb.c b/src/kernel/fbdev/radeonfb/radeonfb.c
index fc9240c..580d26c 100644
--- a/src/kernel/fbdev/radeonfb/radeonfb.c
+++ b/src/kernel/fbdev/radeonfb/radeonfb.c
@@ -140,6 +140,9 @@
 
 #include <linux/radeonfb.h>
 
+#ifndef FB_ACCEL_ATI_RADEON
+#define FB_ACCEL_ATI_RADEON	38
+#endif
 
 #define DEBUG	0