diff --git a/core/runtime/src/main/java/io/quarkiverse/langchain4j/runtime/aiservice/QuarkusAiServiceContext.java b/core/runtime/src/main/java/io/quarkiverse/langchain4j/runtime/aiservice/QuarkusAiServiceContext.java
index ac97e1fdb..a016bb68a 100644
--- a/core/runtime/src/main/java/io/quarkiverse/langchain4j/runtime/aiservice/QuarkusAiServiceContext.java
+++ b/core/runtime/src/main/java/io/quarkiverse/langchain4j/runtime/aiservice/QuarkusAiServiceContext.java
@@ -44,6 +44,9 @@ public void accept(Object memoryId, ChatMemory chatMemory) {
      * via {@link io.quarkiverse.langchain4j.ChatMemoryRemover}
      */
     public void removeChatMemoryIds(Object... ids) {
+        if (chatMemories == null) {
+            return;
+        }
         for (Object id : ids) {
             ChatMemory chatMemory = chatMemories.remove(id);
             if (chatMemory != null) {