diff --git a/README.org b/README.org
index 4fc855a90..7ec5c16cb 100644
--- a/README.org
+++ b/README.org
@@ -64,7 +64,7 @@ can be handy for CI purposes:
 ...
 let
   emacsForCI = pkgs.emacsWithPackagesFromPackageRequires {
-    packageFile = builtins.readFile ./flycheck.el;
+    packageElisp = builtins.readFile ./flycheck.el;
     extraEmacsPackages = epkgs: [
       epkgs.package-lint
     ];
diff --git a/packreq.nix b/packreq.nix
index 5e432201a..d7d7dc79a 100644
--- a/packreq.nix
+++ b/packreq.nix
@@ -7,13 +7,13 @@ Package-Requires declarations.
 let
   parse = pkgs.callPackage ./parse.nix { };
 in
-{ packageFile
+{ packageElisp
 , extraEmacsPackages ? epkgs: [ ]
 , package ? pkgs.emacs
 , override ? (epkgs: epkgs)
 }:
 let
-  packages = parse.parsePackagesFromPackageRequires packageFile;
+  packages = parse.parsePackagesFromPackageRequires packageElisp;
   emacsPackages = pkgs.emacsPackagesGen package;
   emacsWithPackages = emacsPackages.emacsWithPackages;
 in
diff --git a/parse.nix b/parse.nix
index 3fc18b7f0..b79411127 100644
--- a/parse.nix
+++ b/parse.nix
@@ -6,8 +6,8 @@ let
     (x: builtins.typeOf x == "string")
     (builtins.split _sep _s);
 
-  # Parse (all) Package-Requires elisp headers found in the input string
-  # `packageFile` into a list of package name strings.
+  # Parse (all) Package-Requires packageElisp headers found in the input string
+  # `packageElisp` into a list of package name strings.
   #
   # Example inputs:
   #
@@ -19,9 +19,9 @@ let
   #  => [ "dash" "pkg-info" ]
   #  ;; Package-Requires: ((dash) (pkg-info "0.4"))
   #  => [ "dash" "pkg-info" ]
-  parsePackagesFromPackageRequires = packageFile:
+  parsePackagesFromPackageRequires = packageElisp:
     let
-      lines = splitString "\r?\n" packageFile;
+      lines = splitString "\r?\n" packageElisp;
       requires =
         lib.concatMapStrings
           (line: