diff --git a/ce/ce.c b/ce/ce.c
index e1f07dd..1bb3bd8 100644
--- a/ce/ce.c
+++ b/ce/ce.c
@@ -58,11 +58,15 @@ void cprintf (struct context* context, const char* fmt, ...) {
     return;
   }
 
-  vsnprintf (buf, CPRINTF_BUF_MAX, fmt, args);
+  int len = vsnprintf (buf, CPRINTF_BUF_MAX, fmt, args);
 
   va_end (args);
 
-  strbuf_append_str (&context->strbuf, buf);
+  if (len > 0) {
+    for (int i = 0; i < len; i++)
+      strbuf_append (&context->strbuf, buf[i]);
+  }
+
   free (buf);
 }
 
@@ -492,7 +496,7 @@ static void execute_redir (struct ast_redir* redir, struct context* context) {
   }
 
   create_file (path);
-  write_file (path, 0, (uint8_t*)context->strbuf.items, context->strbuf.count);
+  write_file (path, 0, (uint8_t*)context->strbuf.items, context->strbuf.count - 1);
 
   volume_close ();
 }