diff --git a/pkgs/by-name/ca/casadi/package.nix b/pkgs/by-name/ca/casadi/package.nix
index 8d511b64d906..011f566cc10b 100644
--- a/pkgs/by-name/ca/casadi/package.nix
+++ b/pkgs/by-name/ca/casadi/package.nix
@@ -30,7 +30,7 @@
   #sundials,
   superscs,
   spral,
-  swig,
+  swig4,
   tinyxml-2,
   withUnfree ? false,
 }:
@@ -139,7 +139,7 @@ stdenv.mkDerivation (finalAttrs: {
       #sundials
       superscs
       spral
-      swig
+      swig4
       tinyxml-2
     ]
     ++ lib.optionals withUnfree [