diff --git a/fish.conf.nix b/fish.conf.nix
index 7ec46ca..d140a16 100644
--- a/fish.conf.nix
+++ b/fish.conf.nix
@@ -157,7 +157,4 @@ end
 end
 
 # export CHEZSCHEMELIBDIRS="/home/mbk/Aims/chez/thunderchez:/home/mbk/Aims/chez/thunderchez:/home/mbk/Aims/chez/chez-srfi:/home/mbk/Aims/chez/pfds"
-
-# opam configuration
-source /home/mbk/.opam/opam-init/init.fish > /dev/null 2> /dev/null; or true
 ''
diff --git a/home.nix b/home.nix
index 4d89b20..75d8506 100644
--- a/home.nix
+++ b/home.nix
@@ -441,12 +441,6 @@
 
   programs.home-manager.enable = true;
 
-  programs.opam = {
-    enable = true;
-    enableFishIntegration = true;
-    enableBashIntegration = true;
-  };
-
   services.syncthing = {
     enable = true;
   };