diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 17c1973..d931340 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -83,7 +83,7 @@
 		*endp = (char *) cp;
 	return result;
 }
-EXPORT_SYMBOL(simple_strtoll);
+EXPORT_SYMBOL(simple_strtoull);
 
 /* we use this so that we can do without the ctype library */
 #define is_digit(c)	((c) >= '0' && (c) <= '9')