diff --git a/src/libtmux/server.py b/src/libtmux/server.py
index c0ad1dc50..e2fdb4d29 100644
--- a/src/libtmux/server.py
+++ b/src/libtmux/server.py
@@ -247,7 +247,11 @@ def raise_if_dead(self) -> None:
             cmd_args.insert(0, f"-f{self.config_file}")
 
         try:
-            subprocess.check_call([resolved, *cmd_args])
+            subprocess.check_call(
+                [resolved, *cmd_args],
+                stdout=subprocess.DEVNULL,
+                stderr=subprocess.DEVNULL,
+            )
         except FileNotFoundError:
             raise exc.TmuxCommandNotFound from None