diff --git a/sway/commands.c b/sway/commands.c
index c31911de1..9a90fe5fc 100644
--- a/sway/commands.c
+++ b/sway/commands.c
@@ -30,7 +30,9 @@ static struct modifier_key modifiers[] = {
 	{ XKB_MOD_NAME_SHIFT, WLC_BIT_MOD_SHIFT },
 	{ XKB_MOD_NAME_CAPS, WLC_BIT_MOD_CAPS },
 	{ XKB_MOD_NAME_CTRL, WLC_BIT_MOD_CTRL },
+	{ "Ctrl", WLC_BIT_MOD_CTRL },
 	{ XKB_MOD_NAME_ALT, WLC_BIT_MOD_ALT },
+	{ "Alt", WLC_BIT_MOD_ALT },
 	{ XKB_MOD_NAME_NUM, WLC_BIT_MOD_MOD2 },
 	{ "Mod3", WLC_BIT_MOD_MOD3 },
 	{ XKB_MOD_NAME_LOGO, WLC_BIT_MOD_LOGO },