diff --git a/picom.sample.conf b/picom.sample.conf
index 641db57d..ebc318dd 100644
--- a/picom.sample.conf
+++ b/picom.sample.conf
@@ -48,7 +48,7 @@ shadow-exclude = [
   "class_g = 'Conky'",
   "class_g ?= 'Notify-osd'",
   "class_g = 'Cairo-clock'",
-  "_GTK_FRAME_EXTENTS@:c"
+  "_GTK_FRAME_EXTENTS@"
 ];
 
 # Specify a list of conditions of windows that should have no shadow painted over, such as a dock window.
@@ -197,7 +197,7 @@ blur-kern = "3x3box";
 blur-background-exclude = [
   "window_type = 'dock'",
   "window_type = 'desktop'",
-  "_GTK_FRAME_EXTENTS@:c"
+  "_GTK_FRAME_EXTENTS@"
 ];
 
 #################################