diff --git a/apps/essimporter/importcellref.cpp b/apps/essimporter/importcellref.cpp
index 845c574e4b..1894b0023b 100644
--- a/apps/essimporter/importcellref.cpp
+++ b/apps/essimporter/importcellref.cpp
@@ -23,7 +23,7 @@ namespace ESSImport
         if (esm.isNextSub("LVCR"))
         {
             // occurs on leveled creature spawner references
-            // probably some identifier for the the creature that has been spawned?
+            // probably some identifier for the creature that has been spawned?
             unsigned char lvcr;
             esm.getHT(lvcr);
             //std::cout << "LVCR: " << (int)lvcr << std::endl;
diff --git a/apps/openmw/mwmechanics/spellcasting.cpp b/apps/openmw/mwmechanics/spellcasting.cpp
index ff27ac5f62..49887e560f 100644
--- a/apps/openmw/mwmechanics/spellcasting.cpp
+++ b/apps/openmw/mwmechanics/spellcasting.cpp
@@ -472,9 +472,7 @@ namespace MWMechanics
                     applyInstantEffect(target, caster, EffectKey(*effectIt), magnitude);
 
                 // Re-casting a summon effect will remove the creature from previous castings of that effect.
-                if (effectIt->mEffectID >= ESM::MagicEffect::SummonScamp
-                        && effectIt->mEffectID <= ESM::MagicEffect::SummonStormAtronach
-                        && !target.isEmpty() && target.getClass().isActor())
+                if (isSummoningEffect(effectIt->mEffectID) && !target.isEmpty() && target.getClass().isActor())
                 {
                     CreatureStats& targetStats = target.getClass().getCreatureStats(target);
                     std::map<CreatureStats::SummonKey, int>::iterator found = targetStats.getSummonedCreatureMap().find(std::make_pair(effectIt->mEffectID, mId));
@@ -956,4 +954,13 @@ namespace MWMechanics
 
         return static_cast<int>((result < 1) ? 1 : result);
     }
+
+    bool isSummoningEffect(int effectId)
+    {
+        return ((effectId >= ESM::MagicEffect::SummonScamp
+                && effectId <= ESM::MagicEffect::SummonStormAtronach)
+                || effectId == ESM::MagicEffect::SummonCenturionSphere
+                || (effectId >= ESM::MagicEffect::SummonFabricant
+                    && effectId <= ESM::MagicEffect::SummonCreature05));
+    }
 }
diff --git a/apps/openmw/mwmechanics/spellcasting.hpp b/apps/openmw/mwmechanics/spellcasting.hpp
index 00fae847fc..2d550e0856 100644
--- a/apps/openmw/mwmechanics/spellcasting.hpp
+++ b/apps/openmw/mwmechanics/spellcasting.hpp
@@ -22,6 +22,8 @@ namespace MWMechanics
 
     ESM::Skill::SkillEnum spellSchoolToSkill(int school);
 
+    bool isSummoningEffect(int effectId);
+
     /**
      * @param spell spell to cast
      * @param actor calculate spell success chance for this actor (depends on actor's skills)
diff --git a/apps/openmw/mwmechanics/summoning.cpp b/apps/openmw/mwmechanics/summoning.cpp
index 356cb422f1..ec9bd0ea01 100644
--- a/apps/openmw/mwmechanics/summoning.cpp
+++ b/apps/openmw/mwmechanics/summoning.cpp
@@ -5,6 +5,8 @@
 #include "../mwbase/environment.hpp"
 #include "../mwbase/world.hpp"
 
+#include "../mwmechanics/spellcasting.hpp"
+
 #include "../mwworld/esmstore.hpp"
 #include "../mwworld/class.hpp"
 #include "../mwworld/manualref.hpp"
@@ -51,8 +53,7 @@ namespace MWMechanics
 
     void UpdateSummonedCreatures::visit(EffectKey key, const std::string &sourceName, const std::string &sourceId, int casterActorId, float magnitude, float remainingTime, float totalTime)
     {
-        if (key.mId >= ESM::MagicEffect::SummonScamp
-                && key.mId <= ESM::MagicEffect::SummonStormAtronach && magnitude > 0)
+        if (isSummoningEffect(key.mId) && magnitude > 0)
         {
             mActiveEffects.insert(std::make_pair(key.mId, sourceId));
         }