diff --git a/src/eval.c b/src/eval.c
index 648d938..e111707 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -11931,7 +11931,7 @@
 #ifdef FEAT_SEARCHPATH
 	"file_in_path",
 #endif
-#if defined(UNIX) && !defined(USE_SYSTEM)
+#if (defined(UNIX) && !defined(USE_SYSTEM)) || defined(WIN3264)
 	"filterpipe",
 #endif
 #ifdef FEAT_FIND_ID