diff --git a/src/eval.c b/src/eval.c
index 4e512af..ae8331d 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -12464,6 +12464,9 @@
 #ifdef FEAT_DIGRAPHS
 	"digraphs",
 #endif
+#ifdef FEAT_DIRECTX
+	"directx",
+#endif
 #ifdef FEAT_DND
 	"dnd",
 #endif