diff --git a/src/AS/Send.c b/src/AS/Send.c
index 766f393..a787c53 100644
--- a/src/AS/Send.c
+++ b/src/AS/Send.c
@@ -47,11 +47,13 @@ ASSend(const ParseeConfig *conf, char *id, char *user, char *type, HashMap *c, u
     ts_str = TSToStr(ts);
 
     txn = StrRandom(16);
+    id = HttpUrlEncode(id);
     path = StrConcat(11, 
         "/_matrix/client/v3/rooms/",
         id, "/send/", type, "/", txn, "?",
         "user_id=", user, "&ts=", ts_str
     );
+    Free(id);
     Free(txn);
     Free(ts_str);