diff --git a/src/session.sh b/src/session.sh
index 43c4d35..55c29d3 100755
--- a/src/session.sh
+++ b/src/session.sh
@@ -39,7 +39,7 @@
 export XDG_CURRENT_DESKTOP=sway
 export XDG_SESSION_DESKTOP="${XDG_SESSION_DESKTOP:-sway}"
 export XDG_SESSION_TYPE=wayland
-VARIABLES="DESKTOP_SESSION XDG_CURRENT_DESKTOP XDG_SESSION_DESKTOP XDG_SESSION_TYPE"
+VARIABLES="DESKTOP_SESSION XDG_CURRENT_DESKTOP XDG_SESSION_DESKTOP XDG_SESSION_ID XDG_SESSION_TYPE"
 VARIABLES="${VARIABLES} DISPLAY I3SOCK SWAYSOCK WAYLAND_DISPLAY"
 VARIABLES="${VARIABLES} XCURSOR_THEME XCURSOR_SIZE"
 SESSION_TARGET="sway-session.target"