diff --git a/src/ex_cmds.c b/src/ex_cmds.c
index 3d3f12a..005f28f 100644
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -1113,7 +1113,7 @@
     if (do_out)
 	shell_flags |= SHELL_DOOUT;
 
-#if (!defined(USE_SYSTEM) && defined(UNIX)) || defined(WIN3264)
+#ifdef FEAT_FILTERPIPE
     if (!do_in && do_out && !p_stmp)
     {
 	/* Use a pipe to fetch stdout of the command, do not use a temp file. */