diff --git a/homeConfigurations/tejing/programming.nix b/homeConfigurations/tejing/programming.nix
index 776845a..63ee090 100644
--- a/homeConfigurations/tejing/programming.nix
+++ b/homeConfigurations/tejing/programming.nix
@@ -10,6 +10,7 @@
       # perhaps this should be left to individual development environments?
       ruby
       ghc
+      calc
     ;
   };