diff --git a/spec/unit/crypto/algorithms/olm.spec.js b/spec/unit/crypto/algorithms/olm.spec.js
index 882f67235..ee7adbb73 100644
--- a/spec/unit/crypto/algorithms/olm.spec.js
+++ b/spec/unit/crypto/algorithms/olm.spec.js
@@ -246,7 +246,7 @@ describe("OlmDevice", function() {
 
             // After a single tick through the first task, it should have
             // claimed ownership of all devices to avoid deadlocking others.
-            expect(Object.keys(aliceOlmDevice._sessionsInProgress).length).toBe(2);
+            expect(Object.keys(aliceOlmDevice.sessionsInProgress).length).toBe(2);
 
             const task2 = alwaysSucceed(olmlib.ensureOlmSessionsForDevices(
                 aliceOlmDevice, baseApis, devicesByUserBA,
@@ -254,7 +254,7 @@ describe("OlmDevice", function() {
 
             // The second task should not have changed the ownership count, as
             // it's waiting on the first task.
-            expect(Object.keys(aliceOlmDevice._sessionsInProgress).length).toBe(2);
+            expect(Object.keys(aliceOlmDevice.sessionsInProgress).length).toBe(2);
 
             // Track the tasks, but don't await them yet.
             const promises = Promise.all([
diff --git a/spec/unit/crypto/backup.spec.js b/spec/unit/crypto/backup.spec.js
index bbd2a6d8e..bd12be1ad 100644
--- a/spec/unit/crypto/backup.spec.js
+++ b/spec/unit/crypto/backup.spec.js
@@ -288,7 +288,7 @@ describe("MegolmBackup", function() {
                                         ed25519: "SENDER_ED25519",
                                     },
                                     room_id: ROOM_ID,
-                                    session: ibGroupSession.pickle(olmDevice._pickleKey),
+                                    session: ibGroupSession.pickle(olmDevice.pickleKey),
                                 },
                                 txn);
                         });
@@ -369,7 +369,7 @@ describe("MegolmBackup", function() {
                                         ed25519: "SENDER_ED25519",
                                     },
                                     room_id: ROOM_ID,
-                                    session: ibGroupSession.pickle(olmDevice._pickleKey),
+                                    session: ibGroupSession.pickle(olmDevice.pickleKey),
                                 },
                                 txn);
                         });
@@ -546,7 +546,7 @@ describe("MegolmBackup", function() {
                                         ed25519: "SENDER_ED25519",
                                     },
                                     room_id: ROOM_ID,
-                                    session: ibGroupSession.pickle(olmDevice._pickleKey),
+                                    session: ibGroupSession.pickle(olmDevice.pickleKey),
                                 },
                                 txn);
                         });