diff --git a/pkgs/by-name/pr/prettier/package.nix b/pkgs/by-name/pr/prettier/package.nix
index 8dfbef2faab4..c9886eb4fff8 100644
--- a/pkgs/by-name/pr/prettier/package.nix
+++ b/pkgs/by-name/pr/prettier/package.nix
@@ -98,12 +98,12 @@ let
     # Arguments
 
     plugin
-    : Attribute set with `.packageName` and `.outPath` defined
+    : Attribute set with `.pname` and `.outPath` defined
   */
   nodeEntryPointOf =
     plugin:
     let
-      pluginDir = "${plugin.outPath}/lib/node_modules/${plugin.packageName}";
+      pluginDir = "${plugin.outPath}/lib/node_modules/${plugin.pname}";
 
       packageJsonAttrs = builtins.fromJSON (builtins.readFile "${pluginDir}/package.json");
 
@@ -118,10 +118,10 @@ let
       pathAbsoluteFallback
     else
       lib.warn ''
-        ${plugin.packageName}: error context, tried finding entry point under;
+        ${plugin.pname}: error context, tried finding entry point under;
         pathAbsoluteNaive -> ${pathAbsoluteNaive}
         pathAbsoluteFallback -> ${pathAbsoluteFallback}
-      '' throw ''${plugin.packageName}: does not provide parse-able entry point'';
+      '' throw ''${plugin.pname}: does not provide parse-able entry point'';
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "prettier";