diff --git a/drivers/staging/rtl8188eu/include/rtw_security.h b/drivers/staging/rtl8188eu/include/rtw_security.h
index abe7e21e6e20..a1aebe6c8452 100644
--- a/drivers/staging/rtl8188eu/include/rtw_security.h
+++ b/drivers/staging/rtl8188eu/include/rtw_security.h
@@ -336,9 +336,6 @@ static const unsigned long K[64] = {
 #define Sigma1(x)       (S(x, 6) ^ S(x, 11) ^ S(x, 25))
 #define Gamma0(x)       (S(x, 7) ^ S(x, 18) ^ R(x, 3))
 #define Gamma1(x)       (S(x, 17) ^ S(x, 19) ^ R(x, 10))
-#ifndef MIN
-#define MIN(x, y) (((x) < (y)) ? (x) : (y))
-#endif
 
 void rtw_secmicsetkey(struct mic_data *pmicdata, u8 *key);
 void rtw_secmicappendbyte(struct mic_data *pmicdata, u8 b);