diff --git a/home/system/hyprland/default.nix b/home/system/hyprland/default.nix
index 09aa870..1ef8667 100644
--- a/home/system/hyprland/default.nix
+++ b/home/system/hyprland/default.nix
@@ -123,6 +123,8 @@ in {
 
       windowrule = [
         "match:class .*, suppress_event maximize"
+        "match:class helium, suppress_event fullscreen"
+        "match:class helium, sync_fullscreen false"
 
         "match:class proton-authenticator, float on"
         "match:class proton-authenticator, center on"