diff --git a/src/option.h b/src/option.h
index b772a8e..bfbea39 100644
--- a/src/option.h
+++ b/src/option.h
@@ -966,7 +966,7 @@
 EXTERN long	p_wmw;		/* 'winminwidth' */
 EXTERN long	p_wiw;		/* 'winwidth' */
 #endif
-#if defined(WIN3264) && defined(TERMINAL)
+#if defined(WIN3264) && defined(FEAT_TERMINAL)
 EXTERN char_u	*p_winptydll;	/* 'winptydll' */
 #endif
 EXTERN int	p_ws;		/* 'wrapscan' */