diff --git a/src/game/SpellMgr.cpp b/src/game/SpellMgr.cpp
index d5fe01e07..77464b817 100644
--- a/src/game/SpellMgr.cpp
+++ b/src/game/SpellMgr.cpp
@@ -1176,6 +1176,10 @@ bool SpellMgr::IsNoStackSpellDueToSpell(uint32 spellId_1, uint32 spellId_2) cons
                 if( (spellInfo_1->SpellIconID == 313 || spellInfo_1->SpellIconID == 2039) && (spellInfo_2->SpellIconID == 544  || spellInfo_2->SpellIconID == 91) ||
                     (spellInfo_2->SpellIconID == 313 || spellInfo_2->SpellIconID == 2039) && (spellInfo_1->SpellIconID == 544  || spellInfo_1->SpellIconID == 91) )
                     return false;
+
+                // Metamorphosis, diff effects
+                if (spellInfo_1->SpellIconID == 3314 && spellInfo_2->SpellIconID == 3314)
+                    return false;
             }
             // Detect Invisibility and Mana Shield (multi-family check)
             if( spellInfo_1->Id == 132 && spellInfo_2->SpellIconID == 209 && spellInfo_2->SpellVisual[0] == 968 )
diff --git a/src/shared/revision_nr.h b/src/shared/revision_nr.h
index 3d8bac33a..94e2d5ed7 100644
--- a/src/shared/revision_nr.h
+++ b/src/shared/revision_nr.h
@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "8198"
+ #define REVISION_NR "8199"
 #endif // __REVISION_NR_H__