diff --git a/src/main.c b/src/main.c
index a091165..9f56e88 100644
--- a/src/main.c
+++ b/src/main.c
@@ -2372,7 +2372,7 @@
      * Is there any other system that cannot do this?
      */
     close(0);
-    dup(2);
+    ignored = dup(2);
 #endif
 }