diff --git a/hypr/conf/windowrules/custom.conf b/hypr/conf/windowrules/custom.conf
index d71672b..9875991 100644
--- a/hypr/conf/windowrules/custom.conf
+++ b/hypr/conf/windowrules/custom.conf
@@ -14,7 +14,7 @@ windowrule = pin,^(showmethekey-gtk)$
 layerrule = blur, gtk-layer-shell
 layerrule = blur, logout_dialog
 
-windowrule = float,title=^(Mathematica)$
+windowrule = float,title:^(Mathematica)$
 windowrule = opacity 0.75, ^(Code)$
 windowrule = opacity 0.75, ^(code-oss)$
 windowrule = opacity 0.75, ^(code-url-handler)$