diff --git a/src/rufus.h b/src/rufus.h
index 37b15e39..61d75111 100644
--- a/src/rufus.h
+++ b/src/rufus.h
@@ -85,7 +85,6 @@
 #define safe_stricmp(str1, str2) _stricmp(((str1==NULL)?"<NULL>":str1), ((str2==NULL)?"<NULL>":str2))
 #define safe_strncmp(str1, str2, count) strncmp(((str1==NULL)?"<NULL>":str1), ((str2==NULL)?"<NULL>":str2), count)
 #define safe_strnicmp(str1, str2, count) _strnicmp(((str1==NULL)?"<NULL>":str1), ((str2==NULL)?"<NULL>":str2), count)
-#define safe_strstr(str1, str2) strstr(((str1==NULL)?"<NULL>":str1), ((str2==NULL)?"<NULL>":str2))
 #define safe_closehandle(h) do {if ((h != INVALID_HANDLE_VALUE) && (h != NULL)) {CloseHandle(h); h = INVALID_HANDLE_VALUE;}} while(0)
 #define safe_unlockclose(h) do {if ((h != INVALID_HANDLE_VALUE) && (h != NULL)) {UnlockDrive(h); CloseHandle(h); h = INVALID_HANDLE_VALUE;}} while(0)
 #define safe_sprintf(dst, count, ...) do {_snprintf(dst, count, __VA_ARGS__); (dst)[(count)-1] = 0; } while(0)