diff --git a/dist/setup/index.js b/dist/setup/index.js
index 25798ccb6..e9a3bdb53 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -61948,13 +61948,18 @@ function getArch(arch) {
     // 'arm', 'arm64', 'ia32', 'mips', 'mipsel', 'ppc', 'ppc64', 's390', 's390x', 'x32', and 'x64'.
     // wants amd64, 386, arm64, armv61, ppc641e, s390x
     // currently not supported by runner but future proofed mapping
+    let endianness = os_1.default.endianness();
     switch (arch) {
         case 'x64':
             arch = 'amd64';
             break;
-        // case 'ppc':
-        //   arch = 'ppc64';
-        //   break;
+        case 'ppc64':
+            if (endianness == 'LE') {
+              arch = 'ppc64le';
+            } else {
+              arch = 'ppc64';
+            }
+            break;
         case 'x32':
             arch = '386';
             break;
@@ -62213,4 +62218,4 @@ main_1.run();
 
 module.exports = __webpack_exports__;
 /******/ })()
-;
\ No newline at end of file
+;
diff --git a/src/system.ts b/src/system.ts
index e54146da0..96d23561d 100644
--- a/src/system.ts
+++ b/src/system.ts
@@ -20,13 +20,18 @@ export function getArch(arch: string): string {
 
   // wants amd64, 386, arm64, armv61, ppc641e, s390x
   // currently not supported by runner but future proofed mapping
+  let endianness: string = os.endianness();
   switch (arch) {
     case 'x64':
       arch = 'amd64';
       break;
-    // case 'ppc':
-    //   arch = 'ppc64';
-    //   break;
+    case 'ppc64':
+      if (endianness == 'LE') {
+        arch = 'ppc64le';
+      } else {
+        arch = 'ppc64';
+      }
+      break;
     case 'x32':
       arch = '386';
       break;