diff --git a/i3-config b/i3-config
index 20f60e8..626828f 100644
--- a/i3-config
+++ b/i3-config
@@ -225,6 +225,7 @@ for_window [class="Firefox" instance="Navigator"] border pixel 0
 for_window [class="jetbrains-toolbox"] floating enable
 for_window [class="Slack"] border pixel 0
 for_window [class="^jetbrains-.+"][window_type=dialog] floating enable
+for_window [class="XCalc"] floating enable
 # Citrix workspace
 for_window [class="Wfica"] border pixel 0
 for_window [class="PrimaryAuthManager"] floating enable