diff --git a/src/server/game/Spells/SpellMgr.cpp b/src/server/game/Spells/SpellMgr.cpp
index 260d1e1023..8d98ae1a5a 100755
--- a/src/server/game/Spells/SpellMgr.cpp
+++ b/src/server/game/Spells/SpellMgr.cpp
@@ -3860,6 +3860,11 @@ void SpellMgr::LoadSpellCustomAttr()
             spellInfo->Stances = 1 << (FORM_TREE - 1);
             ++count;
             break;
+        case 47569: // Improved Shadowform (Rank 1)
+            // with this spell atrribute aura can be stacked several times
+            spellInfo->Attributes &= ~SPELL_ATTR0_NOT_SHAPESHIFT;
+            ++count;
+            break;
         case 30421: // Nether Portal - Perseverence
             spellInfo->EffectBasePoints[2] += 30000;
             ++count;