diff --git a/pkgs/epnix/support/calc/default.nix b/pkgs/epnix/support/calc/default.nix
index 6b55bb37..40a89a03 100644
--- a/pkgs/epnix/support/calc/default.nix
+++ b/pkgs/epnix/support/calc/default.nix
@@ -11,10 +11,6 @@ mkEpicsPackage rec {
   version = "3-7-5";
   varname = "CALC";
 
-  inherit local_config_site local_release;
-
-  buildInputs = with epnix.support; [sscan];
-
   src = fetchFromGitHub {
     owner = "epics-modules";
     repo = "calc";
@@ -22,6 +18,10 @@ mkEpicsPackage rec {
     sha256 = "sha256-S40HtO7HXDS27u7wmlxuo7oV1abtj1EaXfIz0Kj1IM0=";
   };
 
+  buildInputs = with epnix.support; [sscan];
+
+  inherit local_config_site local_release;
+
   meta = {
     description = "Support for run-time expression evaluation";
     homepage = "https://epics.anl.gov/bcda/synApps/calc/calc.html";