diff --git a/src/index.ts b/src/index.ts
index fc7f73f..3f5b411 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -35,7 +35,7 @@ export function getPrioritizedHashAlgorithm(
 }
 
 export const IntegrityMetadataRegex =
-  /^(?<alg>sha256|sha384|sha512)-(?<val>(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?)(?:[?](?<opts>[\x21-\x7e]*))?$/;
+  /^(?<alg>sha256|sha384|sha512)-(?<val>(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?)(?:[?](?<opt>[\x21-\x7e]*))?$/;
 
 export const SeparatorRegex = /[^\x21-\x7e]+/;
 
diff --git a/test/integrity-metadata/constructor.js b/test/integrity-metadata/constructor.js
index 89d7dd8..c6df9bc 100644
--- a/test/integrity-metadata/constructor.js
+++ b/test/integrity-metadata/constructor.js
@@ -38,7 +38,7 @@ test("supports SHA-512", function () {
   });
 });
 
-test.todo("accepts options", function () {
+test("accepts options", function () {
   const integrityMetadata = new IntegrityMetadata(
     "sha256-MV9b23bQeMQ7isAGTkoBZGErH853yGk0W/yUx1iU7dM=?foo?bar",
   );