diff --git a/src/string/ntapi_tt_aligned_block_memset.c b/src/string/ntapi_tt_aligned_block_memset.c
index 6bc8aa4..7fa5d09 100644
--- a/src/string/ntapi_tt_aligned_block_memset.c
+++ b/src/string/ntapi_tt_aligned_block_memset.c
@@ -26,7 +26,7 @@ void * __cdecl __ntapi_tt_generic_memset(
 {
 	char	c;
 	char *	ch;
-	int	i;
+	size_t	i;
 	size_t	abytes;
 
 	if (!bytes)