diff --git a/pkgs/by-name/ca/calculix/calculix.patch b/pkgs/by-name/ca/calculix-ccx/calculix-ccx.patch
similarity index 100%
rename from pkgs/by-name/ca/calculix/calculix.patch
rename to pkgs/by-name/ca/calculix-ccx/calculix-ccx.patch
diff --git a/pkgs/by-name/ca/calculix/package.nix b/pkgs/by-name/ca/calculix-ccx/package.nix
similarity index 95%
rename from pkgs/by-name/ca/calculix/package.nix
rename to pkgs/by-name/ca/calculix-ccx/package.nix
index aae214513391..49c58b86407a 100644
--- a/pkgs/by-name/ca/calculix/package.nix
+++ b/pkgs/by-name/ca/calculix-ccx/package.nix
@@ -12,7 +12,7 @@
 assert (blas.isILP64 == lapack.isILP64 && blas.isILP64 == arpack.isILP64 && !blas.isILP64);
 
 stdenv.mkDerivation rec {
-  pname = "calculix";
+  pname = "calculix-ccx";
   version = "2.19";
 
   src = fetchurl {
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
   ];
 
   patches = [
-    ./calculix.patch
+    ./calculix-ccx.patch
   ];
 
   postPatch = ''
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 74e47c2d0be7..c8173d5f5c65 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -186,6 +186,7 @@ mapAliases {
   ### C ###
 
   caffeWithCuda = throw "caffeWithCuda has been removed, as it was broken and required CUDA 10"; # Added 2024-11-20
+  calculix = calculix-ccx; # Added 2024-12-18
   calligra = kdePackages.calligra; # Added 2024-09-27
   callPackage_i686 = pkgsi686Linux.callPackage;
   cask = emacs.pkgs.cask; # Added 2022-11-12