diff --git a/config.def.h b/config.def.h
index b17405d..f9dfbe6 100644
--- a/config.def.h
+++ b/config.def.h
@@ -168,7 +168,10 @@ static const Key keys[] = {
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_K,         incnmaster,       {.i = +1} },
 	{ MODKEY,                    XKB_KEY_l,         focusstack,       {.i = +1} },
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_M,         setlayout,        {.v = &layouts[0]} },
+	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_U,         setmfact,         {.f = -0.05f} },
+	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_I,         setmfact,         {.f = -0.05f} },
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_O,         setmfact,         {.f = +0.05f} },
+	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_P,         setmfact,         {.f = +0.05f} },
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_Q,         killclient,       {0} },
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_T,         setlayout,        {.v = &layouts[1]} },
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_C,         setlayout,        {.v = &layouts[2]} },