diff --git a/stagit.c b/stagit.c
@@ -708,7 +708,7 @@ writeblob(git_object *obj, const char *fpath, const char *filename, git_off_t fi
if (mkdirp(d))
return -1;
- for (p = fpath; *p; p++) {
+ for (p = fpath, tmp[0] = '\0'; *p; p++) {
if (*p == '/' && strlcat(tmp, "../", sizeof(tmp)) >= sizeof(tmp))
errx(1, "path truncated: '../%s'", tmp);
p++;