diff --git a/gdk/quartz/gdkkeys-quartz.c b/gdk/quartz/gdkkeys-quartz.c
index e4c163643f..61526b184f 100644
--- a/gdk/quartz/gdkkeys-quartz.c
+++ b/gdk/quartz/gdkkeys-quartz.c
@@ -199,6 +199,7 @@ const static struct {
   { 0xf2c6, GDK_dead_circumflex },
   { 0xf302, GDK_dead_circumflex },
   { 0xf07e, GDK_dead_tilde },
+  { 0xf2dc, GDK_dead_tilde },
   { 0xf303, GDK_dead_tilde },
   { 0xf342, GDK_dead_perispomeni },
   { 0xf0af, GDK_dead_macron },