diff --git a/scripts/create-update-feed.mjs b/scripts/create-update-feed.mjs
index 6a2f8da..663d030 100644
--- a/scripts/create-update-feed.mjs
+++ b/scripts/create-update-feed.mjs
@@ -68,6 +68,8 @@ const verifyWithExecutable = (verifier, artifact, signature) => {
   execFileSync(resolve(verifier), [artifact, signature], { stdio: "pipe" });
 };
 
+const githubReleaseAssetName = (path) => basename(path).replaceAll(" ", ".");
+
 export const createUpdateFeed = ({ root, version, tag, output, verifier, verifySignature }) => {
   if (!SEMVER.test(version)) throw new Error("Invalid semantic version.");
   if (tag !== `v${version}`) throw new Error(`Release tag ${tag} does not match v${version}.`);
@@ -86,7 +88,7 @@ export const createUpdateFeed = ({ root, version, tag, output, verifier, verifyS
     verify(path, signaturePath);
     return {
       signature,
-      url: `https://github.com/switchifyapp/switchify-pc/releases/download/${encodeURIComponent(tag)}/${encodeURIComponent(basename(path))}`,
+      url: `https://github.com/switchifyapp/switchify-pc/releases/download/${encodeURIComponent(tag)}/${encodeURIComponent(githubReleaseAssetName(path))}`,
     };
   };
 
diff --git a/scripts/create-update-feed.node-test.mjs b/scripts/create-update-feed.node-test.mjs
index 87b31cf..e729f17 100644
--- a/scripts/create-update-feed.node-test.mjs
+++ b/scripts/create-update-feed.node-test.mjs
@@ -18,8 +18,8 @@ const fixtures = () => {
   const windowsDirectory = join(root, "windows-release");
   mkdirSync(macDirectory);
   mkdirSync(windowsDirectory);
-  const mac = join(macDirectory, "Switchify.PC.app.tar.gz");
-  const windows = join(windowsDirectory, "Switchify.PC_1.0.0_x64-setup.exe");
+  const mac = join(macDirectory, "Switchify PC.app.tar.gz");
+  const windows = join(windowsDirectory, "Switchify PC_1.0.0_x64-setup.exe");
   writeFileSync(mac, gzipSync("archive fixture"));
   const pe = Buffer.alloc(128);
   pe.write("MZ", 0, "ascii");
@@ -48,6 +48,18 @@ describe("createUpdateFeed", () => {
     assert.equal(feed.platforms["windows-x86_64"].signature, "windows-signature");
   });
 
+  it("uses the dot-normalized names GitHub assigns to release assets", () => {
+    const feed = createUpdateFeed(options(fixtures()));
+    assert.equal(
+      feed.platforms["darwin-aarch64"].url,
+      "https://github.com/switchifyapp/switchify-pc/releases/download/v1.0.0-beta.1/Switchify.PC.app.tar.gz",
+    );
+    assert.equal(
+      feed.platforms["windows-x86_64"].url,
+      "https://github.com/switchifyapp/switchify-pc/releases/download/v1.0.0-beta.1/Switchify.PC_1.0.0_x64-setup.exe",
+    );
+  });
+
   it("refuses a non-empty signature that fails cryptographic verification", () => {
     const fixture = fixtures();
     assert.throws(