diff --git a/src/main/java/com/radiadesign/catalina/session/RedisSessionManager.java b/src/main/java/com/radiadesign/catalina/session/RedisSessionManager.java
index a7a54616..b0e34861 100644
--- a/src/main/java/com/radiadesign/catalina/session/RedisSessionManager.java
+++ b/src/main/java/com/radiadesign/catalina/session/RedisSessionManager.java
@@ -407,7 +407,7 @@ public void save(Session session) throws IOException {
 
       jedis = acquireConnection();
 
-      if (sessionIsDirty || currentSessionIsPersisted.get() != true) {
+      if (sessionIsDirty || currentSessionIsPersisted.get() == null || currentSessionIsPersisted.get() != true) {
         jedis.set(binaryId, serializer.serializeFrom(redisSession));
       }