--- a/src/server/proxy/httpclient.c	Mon Feb 23 22:28:44 2026 +0100
+++ b/src/server/proxy/httpclient.c	Tue Feb 24 12:28:58 2026 +0100
@@ -470,7 +470,7 @@
         return 0;
     }
     
-    char *buffer = client->buffer.inbuf + client->buffer.pos;
+    unsigned char *buffer = client->buffer.inbuf + client->buffer.pos;
     size_t nbytes = client->buffer.maxsize - client->buffer.cursize;
     
     ssize_t r;