diff --git a/users/youwen/common/core.nix b/users/youwen/common/core.nix
index 583bc8c..d1a4e0b 100755
--- a/users/youwen/common/core.nix
+++ b/users/youwen/common/core.nix
@@ -129,6 +129,12 @@
     ];
   };
 
+  programs.nix-index = {
+    enable = true;
+    enableBashIntegration = true;
+    enableFishIntegration = true;
+  };
+
   programs.fd.enable = true;
 
   programs.btop = {