diff --git a/modules/fonts.nix b/modules/fonts.nix
index 4d7e2fc..1b2d83b 100644
--- a/modules/fonts.nix
+++ b/modules/fonts.nix
@@ -15,10 +15,24 @@
     enableDefaultFonts = true;
     enableFontDir = true;
 
-    fontconfig.defaultFonts = {
-      monospace = [ "Iosevka Nerd Font" "Source Han Sans" ];
-      sansSerif = [ "Roboto" "Source Han Sans" ];
-      serif = [ "Georgia" "Source Han Serif" ];
+    fontconfig = {
+      defaultFonts = {
+        monospace = [ "Iosevka Nerd Font" "Source Han Sans" ];
+        sansSerif = [ "Roboto" "Source Han Sans" ];
+        serif = [ "Georgia" "Source Han Serif" ];
+      };
+      localConf = ''
+        <?xml version="1.0" encoding="UTF-8"?>
+        <!DOCTYPE fontconfig SYSTEM "urn:fontconfig:fonts.dtd">
+        <fontconfig>
+          <alias>
+            <family>system-ui</family>
+            <prefer>
+              <family>sans-serif</family>
+            </prefer>
+          </alias>
+        </fontconfig>
+      '';
     };
   };
 }