diff --git a/Source/Engine/Content/AssetReference.h b/Source/Engine/Content/AssetReference.h
index 82ef5adce..fc347585f 100644
--- a/Source/Engine/Content/AssetReference.h
+++ b/Source/Engine/Content/AssetReference.h
@@ -150,22 +150,22 @@ public:
         return *this;
     }
 
-    FORCE_INLINE bool operator==(T* other)
+    FORCE_INLINE bool operator==(T* other) const
     {
         return _asset == other;
     }
 
-    FORCE_INLINE bool operator==(const AssetReference& other)
+    FORCE_INLINE bool operator==(const AssetReference& other) const
     {
         return _asset == other._asset;
     }
 
-    FORCE_INLINE bool operator!=(T* other)
+    FORCE_INLINE bool operator!=(T* other) const
     {
         return _asset != other;
     }
 
-    FORCE_INLINE bool operator!=(const AssetReference& other)
+    FORCE_INLINE bool operator!=(const AssetReference& other) const
     {
         return _asset != other._asset;
     }
diff --git a/Source/Engine/Content/SoftAssetReference.h b/Source/Engine/Content/SoftAssetReference.h
index a65099870..dd1251d61 100644
--- a/Source/Engine/Content/SoftAssetReference.h
+++ b/Source/Engine/Content/SoftAssetReference.h
@@ -105,19 +105,19 @@ public:
     }
 
 public:
-    FORCE_INLINE bool operator==(T* other)
+    FORCE_INLINE bool operator==(T* other) const
     {
         return Get() == other;
     }
-    FORCE_INLINE bool operator==(const SoftAssetReference& other)
+    FORCE_INLINE bool operator==(const SoftAssetReference& other) const
     {
         return GetID() == other.GetID();
     }
-    FORCE_INLINE bool operator!=(T* other)
+    FORCE_INLINE bool operator!=(T* other) const
     {
         return Get() != other;
     }
-    FORCE_INLINE bool operator!=(const SoftAssetReference& other)
+    FORCE_INLINE bool operator!=(const SoftAssetReference& other) const
     {
         return GetID() != other.GetID();
     }
diff --git a/Source/Engine/Content/WeakAssetReference.h b/Source/Engine/Content/WeakAssetReference.h
index 1124e9656..7e756211a 100644
--- a/Source/Engine/Content/WeakAssetReference.h
+++ b/Source/Engine/Content/WeakAssetReference.h
@@ -137,12 +137,12 @@ public:
         return *this;
     }
 
-    FORCE_INLINE bool operator==(T* other)
+    FORCE_INLINE bool operator==(T* other) const
     {
         return _asset == other;
     }
 
-    FORCE_INLINE bool operator==(const WeakAssetReference& other)
+    FORCE_INLINE bool operator==(const WeakAssetReference& other) const
     {
         return _asset == other._asset;
     }
diff --git a/Source/Engine/Scripting/ScriptingObjectReference.h b/Source/Engine/Scripting/ScriptingObjectReference.h
index 3bae0f7a5..26c75687b 100644
--- a/Source/Engine/Scripting/ScriptingObjectReference.h
+++ b/Source/Engine/Scripting/ScriptingObjectReference.h
@@ -164,19 +164,19 @@ public:
 
 public:
 
-    FORCE_INLINE bool operator==(T* other)
+    FORCE_INLINE bool operator==(T* other) const
     {
         return _object == other;
     }
-    FORCE_INLINE bool operator!=(T* other)
+    FORCE_INLINE bool operator!=(T* other) const
     {
         return _object != other;
     }
-    FORCE_INLINE bool operator==(const ScriptingObjectReference& other)
+    FORCE_INLINE bool operator==(const ScriptingObjectReference& other) const
     {
         return _object == other._object;
     }
-    FORCE_INLINE bool operator!=(const ScriptingObjectReference& other)
+    FORCE_INLINE bool operator!=(const ScriptingObjectReference& other) const
     {
         return _object != other._object;
     }