diff --git a/src/bindings/scripts/scripts/kalimdor/temple_of_ahnqiraj/boss_cthun.cpp b/src/bindings/scripts/scripts/kalimdor/temple_of_ahnqiraj/boss_cthun.cpp
index f9de19ff92..5accf61a97 100644
--- a/src/bindings/scripts/scripts/kalimdor/temple_of_ahnqiraj/boss_cthun.cpp
+++ b/src/bindings/scripts/scripts/kalimdor/temple_of_ahnqiraj/boss_cthun.cpp
@@ -545,7 +545,7 @@ struct TRINITY_DLL_DECL cthunAI : public ScriptedAI
 
         //Get random but only if we have more than one unit on threat list
         if (temp.size() > 1)
-            advance (i , rand() % (temp.size() - 1));
+            advance (j , rand() % (temp.size() - 1));
 
         return (*j);
     }