diff --git a/src/PlayerbotAIBase.cpp b/src/PlayerbotAIBase.cpp
index 8cbd24a4..f7c01d68 100644
--- a/src/PlayerbotAIBase.cpp
+++ b/src/PlayerbotAIBase.cpp
@@ -9,6 +9,10 @@ PlayerbotAIBase::PlayerbotAIBase(bool isBotAI) : nextAICheckDelay(0), _isBotAI(i
 {
 }
 
+void PlayerbotAIBase::UpdateAIInternal(uint32 elapsed, bool minimal)
+{
+}
+
 void PlayerbotAIBase::UpdateAI(uint32 elapsed, bool minimal)
 {
     if (nextAICheckDelay > elapsed)
diff --git a/src/PlayerbotAIBase.h b/src/PlayerbotAIBase.h
index 6fa40d6b..b83cd97e 100644
--- a/src/PlayerbotAIBase.h
+++ b/src/PlayerbotAIBase.h
@@ -17,7 +17,7 @@ class PlayerbotAIBase
         void IncreaseNextCheckDelay(uint32 delay);
 	    void YieldThread(bool delay = false);
         virtual void UpdateAI(uint32 elapsed, bool minimal = false);
-        virtual void UpdateAIInternal(uint32 elapsed, bool minimal = false) = 0;
+        virtual void UpdateAIInternal(uint32 elapsed, bool minimal = false);
         bool IsActive();
         bool IsBotAI() const;