diff --git a/ts/src/lib/wynn/wapi.ts b/ts/src/lib/wynn/wapi.ts
index 56356bc..721db96 100644
--- a/ts/src/lib/wynn/wapi.ts
+++ b/ts/src/lib/wynn/wapi.ts
@@ -37,7 +37,7 @@ export class WApi {
           await store.delete({key})
         },
         async set(key, value, req) {
-          let ttl =         value.state === 'loading'
+          let expireTime =         value.state === 'loading'
           ? Date.now() +
             (req?.cache && typeof req.cache.ttl === 'number'
               ? req.cache.ttl
@@ -52,6 +52,12 @@ export class WApi {
           : // otherwise, we can't determine when it should expire, so we keep
             //   it indefinitely.
             undefined
+
+          let ttl: number | undefined
+          if(expireTime) {
+            ttl = expireTime - Date.now()
+          }
+
           await store.set({
             key,
             value: JSON.stringify(value),