diff --git a/tdrop b/tdrop
index 2ab44a2..cbd7f16 100755
--- a/tdrop
+++ b/tdrop
@@ -340,7 +340,7 @@ wm_autoset_for_hide_show() {
 		subtract_when_same=false
 	fi
 
-	if [[ $wm =~ ^(pekwm|Fluxbox|Blackbox|xfwm4|Metacity|FVWM|Sawfish|GoomwW|Mutter|GNOME Shell|Mutter \(Muffin\)|KWin|Metacity \(Marco\)|Compiz)$ ]]; then
+	if [[ $wm =~ ^(pekwm|Fluxbox|Blackbox|xfwm4|Metacity|FVWM|Sawfish|GoomwW|Mutter|GNOME Shell|Mutter \(Muffin\)|KWin|Metacity \(Marco\)|[Cc]ompiz)$ ]]; then
 		combine_map_post=true
 		map_post() {
 			xdotool windowmap "$1" windowmove "$1" "$2" "$3"
@@ -368,7 +368,7 @@ wm_autoset_for_dropdown() {
 				windowsize "$1" "$width" "$height"
 		}
 	# floating window managers that may move a window after unmapping then mapping it
-	elif [[ $wm =~ ^(pekwm|Fluxbox|Blackbox|xfwm4|Metacity|FVWM|Sawfish|GoomwW|Mutter|GNOME Shell|Mutter \(Muffin\)|KWin|Metacity \(Marco\)|Compiz)$ ]]; then
+	elif [[ $wm =~ ^(pekwm|Fluxbox|Blackbox|xfwm4|Metacity|FVWM|Sawfish|GoomwW|Mutter|GNOME Shell|Mutter \(Muffin\)|KWin|Metacity \(Marco\)|[Cc]ompiz)$ ]]; then
 		# most will center
 		# mutter/gnome shell will move to top centerish (just below panel on gnome shell)
 		# xfwm4 will normally move to top left; metacity will move close to top left