diff --git a/README.md b/README.md
index 75d7be10..09c6158f 100644
--- a/README.md
+++ b/README.md
@@ -181,12 +181,12 @@ const actionAttempt = await seam.locks.unlockDoor({
 try {
   await resolveActionAttempt(actionAttempt, seam)
 } catch (err: unknown) {
-  if (isSeamActionAttemptFailedError(err)) {
+  if (isSeamActionAttemptFailedError<typeof actionAttempt>(err)) {
     console.log('Could not unlock the door')
     return
   }
 
-  if (isSeamActionAttemptTimeoutError(err)) {
+  if (isSeamActionAttemptTimeoutError<typeof actionAttempt>(err)) {
     console.log('Door took too long to unlock')
     return
   }
diff --git a/examples/unlock.ts b/examples/unlock.ts
index 8d7b7ee4..6debf4e9 100644
--- a/examples/unlock.ts
+++ b/examples/unlock.ts
@@ -35,12 +35,12 @@ export const handler: Handler<Options> = async ({ deviceId, seam, logger }) => {
     )
     logger.info({ actionAttempt: sucessfulActionAttempt }, 'unlocked')
   } catch (err: unknown) {
-    if (isSeamActionAttemptFailedError(err)) {
+    if (isSeamActionAttemptFailedError<typeof actionAttempt>(err)) {
       logger.info({ err }, 'Could not unlock the door')
       return
     }
 
-    if (isSeamActionAttemptTimeoutError(err)) {
+    if (isSeamActionAttemptTimeoutError<typeof actionAttempt>(err)) {
       logger.info({ err }, 'Door took too long to unlock')
       return
     }