diff --git a/src/exec_pty.c b/src/exec_pty.c
index 422989275..414ac373c 100644
--- a/src/exec_pty.c
+++ b/src/exec_pty.c
@@ -1263,5 +1263,5 @@ safe_close(int fd)
 	errno = EINVAL;
 	return -1;
     }
-    debug_return_int(fd);
+    debug_return_int(close(fd));
 }