diff --git a/src/components/util/util.js b/src/components/util/util.js
index 67c8a85ad..fc81052e4 100644
--- a/src/components/util/util.js
+++ b/src/components/util/util.js
@@ -149,5 +149,6 @@ export function getValue(value) {
 // Given a user record, test whether the user is active. Checking the `active` property ought to
 // be sufficient, but test the expiration date as well just to be sure.
 export function checkUserActive(user) {
+  if (user.expirationDate == null || user.expirationDate == undefined) return user.active;
   return user.active && (new Date(user.expirationDate) >= new Date());
 }
diff --git a/src/components/util/util.test.js b/src/components/util/util.test.js
index 99bb38da7..f7166aff7 100644
--- a/src/components/util/util.test.js
+++ b/src/components/util/util.test.js
@@ -29,4 +29,14 @@ describe('checkUserActive', () => {
 
     expect(checkUserActive(user)).toBe(false);
   });
+
+  it('returns true for active users without an expiration date', () => {
+    const expDate = new Date();
+    const user = {
+      active: true,
+      expirationDate: undefined,
+    };
+
+    expect(checkUserActive(user)).toBe(true);
+  });
 });