diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2b021536..0001bbb3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,10 @@ and this project adheres to
 
 ## [unreleased]
 
+### Fixed
+
+- Fix asset selector to select the correct opam release asset.
+
 ## [3.0.0-beta]
 
 ### Changed
diff --git a/dist/index.js b/dist/index.js
index 35fc5294..7cc2cb33 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -92085,7 +92085,12 @@ async function getLatestOpamRelease() {
     if (!latestRelease) {
         throw new Error("Could not retrieve the opam release matching the version constraint");
     }
-    const matchedAssets = latestRelease.assets.find((asset) => asset.browser_download_url.includes(`${ARCHITECTURE}-${PLATFORM}`));
+    const matchedAssets = latestRelease.assets.find((asset) => {
+        if (PLATFORM === "windows") {
+            return asset.browser_download_url.endsWith(`${ARCHITECTURE}-${PLATFORM}.exe`);
+        }
+        return asset.browser_download_url.endsWith(`${ARCHITECTURE}-${PLATFORM}`);
+    });
     if (!matchedAssets) {
         throw new Error("Could not find any assets matching the current platform or architecture");
     }
diff --git a/packages/setup-ocaml/src/opam.ts b/packages/setup-ocaml/src/opam.ts
index b9ea81a6..85547515 100644
--- a/packages/setup-ocaml/src/opam.ts
+++ b/packages/setup-ocaml/src/opam.ts
@@ -42,9 +42,14 @@ export async function getLatestOpamRelease() {
       "Could not retrieve the opam release matching the version constraint",
     );
   }
-  const matchedAssets = latestRelease.assets.find((asset) =>
-    asset.browser_download_url.includes(`${ARCHITECTURE}-${PLATFORM}`),
-  );
+  const matchedAssets = latestRelease.assets.find((asset) => {
+    if (PLATFORM === "windows") {
+      return asset.browser_download_url.endsWith(
+        `${ARCHITECTURE}-${PLATFORM}.exe`,
+      );
+    }
+    return asset.browser_download_url.endsWith(`${ARCHITECTURE}-${PLATFORM}`);
+  });
   if (!matchedAssets) {
     throw new Error(
       "Could not find any assets matching the current platform or architecture",