diff --git a/config/etc.nix b/config/etc.nix
index 7171993..2c3bbfc 100644
--- a/config/etc.nix
+++ b/config/etc.nix
@@ -16,5 +16,6 @@ with lib;
     NIXPKGS_ALLOW_UNFREE="1";
     WINEDLLOVERRIDES="winemenubuilder.exe=d";
     LC_CTYPE="zh_CN.UTF-8";
+    QT_SCALE_FACTOR="0.7";
   };
 }
diff --git a/config/fonts.nix b/config/fonts.nix
index a518041..761b831 100644
--- a/config/fonts.nix
+++ b/config/fonts.nix
@@ -21,6 +21,7 @@ mkIf (elem "fonts" config.machine.conffiles) {
       noto-fonts-emoji
       noto-fonts-extra
       powerline-fonts
+      source-sans-pro
       source-han-sans-japanese
       source-han-sans-korean
       source-han-sans-simplified-chinese