diff --git a/dist/setup/index.js b/dist/setup/index.js
index ab138ed2..4bc4fd27 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -47063,8 +47063,9 @@ exports.updateMamba = {
     postInstall: (inputs, options) => __awaiter(void 0, void 0, void 0, function* () {
         const mambaBat = conda.condaExecutable(options).replace(/\\/g, "/");
         if (!mambaBat.includes("condabin")) {
-            const condabinLocation = path.join(conda.condaBasePath(options), "condabin", `mamba${constants.IS_WINDOWS ? ".bat" : ""}`);
+            const condabinLocation = path.join(conda.condaBasePath(options), "condabin", path.basename(mambaBat));
             if (!fs.existsSync(condabinLocation)) {
+                core.info("Copying `mamba` to condabin/");
                 fs.copyFileSync(mambaBat, condabinLocation);
             }
         }
diff --git a/src/base-tools/update-mamba.ts b/src/base-tools/update-mamba.ts
index 246de5bf..620c138e 100644
--- a/src/base-tools/update-mamba.ts
+++ b/src/base-tools/update-mamba.ts
@@ -29,9 +29,10 @@ export const updateMamba: types.IToolProvider = {
       const condabinLocation = path.join(
         conda.condaBasePath(options),
         "condabin",
-        `mamba${constants.IS_WINDOWS ? ".bat" : ""}`,
+        path.basename(mambaBat),
       );
       if (!fs.existsSync(condabinLocation)) {
+        core.info("Copying `mamba` to condabin/");
         fs.copyFileSync(mambaBat, condabinLocation);
       }
     }