diff --git a/acme/challenge.go b/acme/challenge.go
index 31b4f6c0..b3a694e7 100644
--- a/acme/challenge.go
+++ b/acme/challenge.go
@@ -559,7 +559,7 @@ func wireDPOP01Validate(ctx context.Context, ch *Challenge, db DB, jwk *jose.JSO
 		return WrapErrorISE(err, "Invalid DPoP token")
 	}
 	dpop := make(map[string]interface{})
-	if err := parsedAccessToken.UnsafeClaimsWithoutVerification(&parsedDpopToken); err != nil {
+	if err := parsedDpopToken.UnsafeClaimsWithoutVerification(&dpop); err != nil {
 		return WrapErrorISE(err, "Failed parsing dpop token")
 	}