diff --git a/win/curses/cursmisc.c b/win/curses/cursmisc.c
index dc8447986..1780a8f76 100644
--- a/win/curses/cursmisc.c
+++ b/win/curses/cursmisc.c
@@ -12,6 +12,10 @@
 
 #include <ctype.h>
 
+#ifndef A_ITALIC
+#define A_ITALIC A_UNDERLINE
+#endif
+
 /* Misc. curses interface functions */
 
 /* Private declarations */