diff --git a/libc/minilibc/string.c b/libc/minilibc/string.c
index e7fc6d40098d076be8419c47d5ea5367a157b1c4..2de4f20790bed1efba12d8ac0c96aee67381c2b8 100644
--- a/libc/minilibc/string.c
+++ b/libc/minilibc/string.c
@@ -38,7 +38,7 @@ size_t strlcpy(char *dst, const char *src, size_t siz)
 	register size_t n = siz;
 
 	/* Copy as many bytes as will fit */
-	if (n != 0)
+	if (n != 0 && --n != 0)
 	{
 		do
 		{