diff --git a/libvo/wskeys.h b/libvo/wskeys.h
index a236a9fd55..2f9523f2d1 100644
--- a/libvo/wskeys.h
+++ b/libvo/wskeys.h
@@ -56,6 +56,7 @@
 #define wsEscape        0xff1b
 #define wsGrayEnter     0xff8d
 #define wsGrayPlus      0xffab
+#define wsGraySeparator 0xffac
 #define wsGrayMinus     0xffad
 #define wsGrayMul       0xffaa
 #define wsGrayDiv       0xffaf
diff --git a/libvo/x11_common.c b/libvo/x11_common.c
index 8cabd3dd09..7030be9d8b 100644
--- a/libvo/x11_common.c
+++ b/libvo/x11_common.c
@@ -564,6 +564,7 @@ static const struct mp_keymap keymap[] = {
     {wsGray3, KEY_KP3}, {wsGray4, KEY_KP4}, {wsGray5, KEY_KP5},
     {wsGray6, KEY_KP6}, {wsGray7, KEY_KP7}, {wsGray8, KEY_KP8},
     {wsGray9, KEY_KP9}, {wsGrayDecimal, KEY_KPDEC},
+    {wsGraySeparator, KEY_KPDEC},
 
     // numpad without numlock
     {wsGrayInsert, KEY_KPINS}, {wsGrayEnd, KEY_KP1}, {wsGrayDown, KEY_KP2},