diff --git a/src/game/SpellAuras.cpp b/src/game/SpellAuras.cpp
index ffcfff32f..843ef5c7c 100644
--- a/src/game/SpellAuras.cpp
+++ b/src/game/SpellAuras.cpp
@@ -6460,6 +6460,14 @@ void Aura::HandleSpellSpecificBoosts(bool apply)
             // second part of spell apply
             switch (GetId())
             {
+                case 45524:                                 // Chains of Ice
+                {
+                    if (apply)
+                        spellId1 = 55095;                   // Frost Fever
+                    else
+                        return;
+                    break;
+                }
                 case 49039: spellId1 = 50397; break;        // Lichborne
 
                 case 48263:                                 // Frost Presence
diff --git a/src/game/SpellEffects.cpp b/src/game/SpellEffects.cpp
index 99ee0a93d..9ee6095fe 100644
--- a/src/game/SpellEffects.cpp
+++ b/src/game/SpellEffects.cpp
@@ -2421,7 +2421,7 @@ void Spell::EffectDummy(SpellEffectIndex eff_idx)
             {
                 if (m_caster->IsFriendlyTo(unitTarget))
                 {
-                    if (unitTarget->GetCreatureType() != CREATURE_TYPE_UNDEAD)
+                    if (!unitTarget || unitTarget->GetCreatureType() != CREATURE_TYPE_UNDEAD)
                         return;
 
                     int32 bp = int32(damage * 1.5f);
diff --git a/src/shared/revision_nr.h b/src/shared/revision_nr.h
index 79b86a9f5..fcf73e013 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 "9955"
+ #define REVISION_NR "9956"
 #endif // __REVISION_NR_H__