diff --git a/.zshenv b/.zshenv
index 01ad6d7..cbc5236 100644
--- a/.zshenv
+++ b/.zshenv
@@ -6,6 +6,7 @@ export STEAMAPPS="$HOME/.local/share/Steam/steamapps/common"
 export QT_STYLE_OVERRIDE=gtk2
 export ALTERNATE_EDITOR=""
 export TERMINAL=roxterm
+export CALIBRE_USE_SYSTEM_THEME=true
 
 export WORDCHARS=${WORDCHARS/\//}
 export PAGER=less