diff --git a/build_database.py b/build_database.py
index f40d6cf..c91621e 100644
--- a/build_database.py
+++ b/build_database.py
@@ -98,8 +98,8 @@ async def main_with_ctx(ctx, wanted_date):
 
                 # write to output
                 log.info("copying temp to output")
-                with output_path.open(mode="wb") as output_fdout:
-                    shutil.copyfileobj(temp_fd, output_fdout)
+                with output_path.open(mode="wb") as output_fd:
+                    shutil.copyfileobj(temp_fd, output_fd)
 
     # decompress
     for url_type, _url in urls.items():
diff --git a/e621_api_cloner.py b/e621_api_cloner.py
index 0daa756..a19edf6 100644
--- a/e621_api_cloner.py
+++ b/e621_api_cloner.py
@@ -150,33 +150,16 @@ async def posts_json():
     if len(tags) != 1:
         return "unsupported query (only 1 tag)", 400
 
-    first_tag = tags[0]
-    tag_parts = first_tag.split(":")
-    if len(tag_parts) != 2:
-        return "unsupported query (tag must be a:b format)", 400
+    md5_tag = tags[0]
+    if not md5_tag.startswith("md5:"):
+        return "unsupported query (only md5 for now)", 400
 
-    type, value = tag_parts
-    if type not in ("md5", "id"):
-        return (
-            "unsupported query (tag must be a:b format, and a must be id or md5)",
-            400,
-        )
+    md5_prefix, md5_hexencoded_hash = md5_tag.split(":")
+    assert md5_prefix == "md5"
 
-    if type == "md5":
-        md5_hexencoded_hash = value
-        rows = await app.db.execute_fetchall(
-            "select * from posts where md5 = ?", (md5_hexencoded_hash,)
-        )
-    elif type == "id":
-        try:
-            value = int(value)
-        except ValueError:
-            return "id:x x must be int", 400
-        rows = await app.db.execute_fetchall(
-            "select * from posts where id = ?", (value,)
-        )
-    else:
-        raise AssertionError("must be id or md5")
+    rows = await app.db.execute_fetchall(
+        "select * from posts where md5 = ?", (md5_hexencoded_hash,)
+    )
     if not rows:
         return {"posts": []}