diff --git a/html.c b/html.c
index cfa9a80..93d218c 100644
--- a/html.c
+++ b/html.c
@@ -1944,7 +1944,7 @@ xs_html *html_entry(snac *user, xs_dict *msg, int read_only,
const char *name = xs_dict_get(a, "name");
/* if this image is already in the post content, skip */
- if (xs_str_in(content, href) != -1)
+ if (content && xs_str_in(content, href) != -1)
continue;
if (xs_startswith(type, "image/") || strcmp(type, "Image") == 0) {