diff --git a/input/x11_input.c b/input/x11_input.c
index 8d9774c390..7af52fb298 100644
--- a/input/x11_input.c
+++ b/input/x11_input.c
@@ -59,6 +59,32 @@ static const struct key_bind lut_binds[] = {
    { XK_Escape, SDLK_ESCAPE },
    { XK_KP_Add, SDLK_KP_PLUS },
    { XK_KP_Subtract, SDLK_KP_MINUS },
+   { XK_BackSpace, SDLK_BACKSPACE },
+   { XK_KP_Enter, SDLK_KP_ENTER },
+   { XK_KP_Add, SDLK_KP_PLUS },
+   { XK_KP_Subtract, SDLK_KP_MINUS },
+   { XK_KP_Multiply, SDLK_KP_MULTIPLY },
+   { XK_KP_Divide, SDLK_KP_DIVIDE },
+   { XK_KP_0, SDLK_KP0 },
+   { XK_KP_1, SDLK_KP1 },
+   { XK_KP_2, SDLK_KP2 },
+   { XK_KP_3, SDLK_KP3 },
+   { XK_KP_4, SDLK_KP4 },
+   { XK_KP_5, SDLK_KP5 },
+   { XK_KP_6, SDLK_KP6 },
+   { XK_KP_7, SDLK_KP7 },
+   { XK_KP_8, SDLK_KP8 },
+   { XK_KP_9, SDLK_KP9 },
+   { XK_0, SDLK_0 },
+   { XK_1, SDLK_1 },
+   { XK_2, SDLK_2 },
+   { XK_3, SDLK_3 },
+   { XK_4, SDLK_4 },
+   { XK_5, SDLK_5 },
+   { XK_6, SDLK_6 },
+   { XK_7, SDLK_7 },
+   { XK_8, SDLK_8 },
+   { XK_9, SDLK_9 },
    { XK_F1, SDLK_F1 },
    { XK_F2, SDLK_F2 },
    { XK_F3, SDLK_F3 },