diff --git a/contract/test/test-contract.js b/contract/test/test-contract.js
index 946bfb1..d7197f5 100644
--- a/contract/test/test-contract.js
+++ b/contract/test/test-contract.js
@@ -69,7 +69,7 @@ test('Install the contract', async t => {
 });
 
 test('Start the contract', async t => {
-  const { zoe, bundle } = /** @type {TestContext} */ (t.context);
+  const { zoe, bundle } = t.context;
 
   const money = makeIssuerKit('PlayMoney');
   const issuers = { Price: money.issuer };
@@ -118,7 +118,7 @@ const alice = async (t, zoe, instance, purse, choices = ['map', 'scroll']) => {
 };
 
 test('Alice trades: give some play money, want items', async t => {
-  const { zoe, bundle } = /** @type {TestContext} */ (t.context);
+  const { zoe, bundle } = t.context;
 
   const money = makeIssuerKit('PlayMoney');
   const issuers = { Price: money.issuer };
@@ -157,8 +157,7 @@ test('Trade in IST rather than play money', async t => {
     );
   };
 
-  const { zoe, bundle, bundleCache, feeMintAccess } =
-    /** @type {TestContext} */ (t.context);
+  const { zoe, bundle, bundleCache, feeMintAccess } = t.context;
   const { instance } = await startContract({ zoe, bundle });
   const { faucet } = makeStableFaucet({ bundleCache, feeMintAccess, zoe });
   await alice(t, zoe, instance, await faucet(5n * UNIT6));
@@ -191,7 +190,7 @@ test('use the code that will go on chain to start the contract', async t => {
       setValue: async () => {},
     });
 
-    const { zoe } = /** @type {TestContext} */ (t.context);
+    const { zoe } = t.context;
     const startUpgradable = async ({
       installation,
       issuerKeywordRecord,
@@ -223,7 +222,7 @@ test('use the code that will go on chain to start the contract', async t => {
 
   // Code to install the contract is automatically
   // generated by `agoric run`. No need to test that part.
-  const { zoe, bundle } = /** @type {TestContext} */ (t.context);
+  const { zoe, bundle } = t.context;
   const installation = E(zoe).install(bundle);
   sync.installation.resolve(installation);
 
@@ -233,7 +232,7 @@ test('use the code that will go on chain to start the contract', async t => {
   const instance = await sync.instance.promise;
 
   // Now that we have the instance, resume testing as above.
-  const { feeMintAccess, bundleCache } = /** @type {TestContext} */ (t.context);
+  const { feeMintAccess, bundleCache } = t.context;
   const { faucet } = makeStableFaucet({ bundleCache, feeMintAccess, zoe });
   await alice(t, zoe, instance, await faucet(5n * UNIT6));
 });