diff --git a/aider/run_cmd.py b/aider/run_cmd.py
index a879e3cad..6f292b26f 100644
--- a/aider/run_cmd.py
+++ b/aider/run_cmd.py
@@ -10,7 +10,7 @@ import pexpect
 def run_cmd(command):
     import sys
 
-    if sys.stdin.isatty() and hasattr(pexpect, "spawn") and platform.system() != "Windows":
+    if False and sys.stdin.isatty() and hasattr(pexpect, "spawn") and platform.system() != "Windows":
         return run_cmd_pexpect(command)
 
     return run_cmd_subprocess(command)