diff --git a/server.py b/server.py
index b289197..d8d0b49 100644
--- a/server.py
+++ b/server.py
@@ -51,9 +51,9 @@ def relay():
         for i in bytes(gemraw):
             try:
                 if not found:
-                    mtype += i
+                    mtype.append(i)
                 else:
-                    gemcontent_binary += i
+                    gemcontent_binary.append(i)
                 if "\n" in bytes(mtype).decode() and not found:
                     ok = bytes(mtype).decode().split(" ")[0][0] == "2"
                     mimetype = bytes(mtype).decode().split(" ")[1].split(";")[0]