diff --git a/dist/index.js b/dist/index.js
index b2e1906..242137e 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -12118,7 +12118,7 @@ const gotClient = got$1.extend({
 function getCacherUrl() {
     const runnerArch = process.env.RUNNER_ARCH;
     const runnerOs = process.env.RUNNER_OS;
-    const binarySuffix = `magic-nix-cache-${runnerArch}-${runnerOs}`;
+    const binarySuffix = `${runnerArch}-${runnerOs}`;
     const urlPrefix = `https://install.determinate.systems/magic-nix-cache-priv`;
     if (coreExports.getInput('source-url')) {
         return coreExports.getInput('source-url');
diff --git a/src/index.ts b/src/index.ts
index 2969413..beac218 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -32,7 +32,7 @@ const gotClient = got.extend({
 function getCacherUrl() : string {
   const runnerArch = process.env.RUNNER_ARCH;
   const runnerOs = process.env.RUNNER_OS;
-  const binarySuffix = `magic-nix-cache-${runnerArch}-${runnerOs}`;
+  const binarySuffix = `${runnerArch}-${runnerOs}`;
   const urlPrefix = `https://install.determinate.systems/magic-nix-cache-priv`;
   if (core.getInput('source-url')) {
     return core.getInput('source-url');