diff --git a/autostart/autostart/redshift.sh b/autostart/autostart/redshift.sh
index 52e27b2..47aa6f6 100755
--- a/autostart/autostart/redshift.sh
+++ b/autostart/autostart/redshift.sh
@@ -4,4 +4,4 @@ redshift_colortemp="6000:3300"
 
 log "starting redshift-gtk"
 redshift-gtk -b 1 -l "$redshift_lat_long" -t "$redshift_colortemp" & &>> "$LOGFILE"
-printf '%s' $! > "$RUNDIR"/redshift.pid
+printf '%s' $! > "$RUNDIR"/redshift.${XDG_SESSION_ID}.pid
diff --git a/autostart/autostart/wallchanger.sh b/autostart/autostart/wallchanger.sh
index 5c5ebbe..aea19fc 100755
--- a/autostart/autostart/wallchanger.sh
+++ b/autostart/autostart/wallchanger.sh
@@ -1,6 +1,6 @@
 path_wallchanger="$HOME/projects/wallchanger/wallchanger"
-wallchanger_pidfile="$RUNDIR/wallchanger.pid"
 wallpaper_directory="$HOME/pictures/wallpaper/misc"
+wallchanger_pidfile="$RUNDIR/wallchanger.${XDG_SESSION_ID}.pid"
 wallpaper_logfile="$LOGDIR/wallpaper.log"
 wallpaper_fallback="$HOME/.i3/data/wallpaper/"
 wallpaper_interval="10800"
diff --git a/i3/i3/config b/i3/i3/config
index f518db2..99fb515 100644
--- a/i3/i3/config
+++ b/i3/i3/config
@@ -271,8 +271,8 @@ bindsym XF86AudioPlay exec --no-startup-id mpc toggle
 bindsym XF86AudioPrev exec --no-startup-id mpc prev
 bindsym XF86AudioNext exec --no-startup-id mpc next
 
-bindsym $mod+o exec --no-startup-id xautorandr ; exec --no-startup-id kill -SIGUSR2 $(cat $RUNDIR/wallchanger.pid)'"
-bindsym $mod+p exec --no-startup-id kill -SIGUSR1 $(cat $RUNDIR/wallchanger.pid)
+bindsym $mod+o exec --no-startup-id xautorandr ; exec --no-startup-id kill -SIGUSR2 $(cat $RUNDIR/wallchanger.$XDG_SESSION_ID.pid)'"
+bindsym $mod+p exec --no-startup-id kill -SIGUSR1 $(cat $RUNDIR/wallchanger.$XDG_SESSION_ID.pid)
 
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