diff --git a/src/microcosm/__init__.py b/src/microcosm/__init__.py
index f9f96df..d9d2643 100644
--- a/src/microcosm/__init__.py
+++ b/src/microcosm/__init__.py
@@ -344,7 +344,12 @@ def process_multipart_post():
                 if "thumbnail" not in frontmatter:
                     frontmatter["thumbnail"] = photo_url
 
-                frontmatter["photo"].append(photo_url)
+                if "mp-photo-alt[]" in request.form:
+                    alt = request.form["mp-photo-alt[]"][i]
+                else:
+                    alt = ""
+
+                frontmatter["photo"].append({"value": photo_url, "alt": alt})
 
                 # docstr += f'\n\n<img src="{photo_url}" class="u-photo" />'