diff --git a/source/arm11/patch.c b/source/arm11/patch.c
index 87fe0e4..df62125 100644
--- a/source/arm11/patch.c
+++ b/source/arm11/patch.c
@@ -30,6 +30,9 @@
 #include "drivers/sha.h"
 
 
+#define min(a, b)  ((size_t) (a) <= (size_t) (b) ? (size_t) (a) : (size_t) (b))
+
+
 typedef struct
 {
 	u8 *buffer;