diff --git a/Pilz.Cryptography/UniquieID.cs b/Pilz.Cryptography/UniquieID.cs
index bf09edd..ddf2c08 100644
--- a/Pilz.Cryptography/UniquieID.cs
+++ b/Pilz.Cryptography/UniquieID.cs
@@ -90,14 +90,36 @@ namespace Pilz.Cryptography
 
         public override bool Equals(object obj)
         {
+            var res = false;
             var iD = obj as UniquieID<TargetType>;
-            var leftHasID = iD != null && iD.HasID;
-            var rightHasID = HasID;
 
-            if (leftHasID && rightHasID)
-                return _iD.Equals(iD._iD);
-            else
-                return false;
+            if (iD is object)
+            {
+                if (ReferenceEquals(res, iD))
+                    res = true;
+                else
+                {
+                    var leftHasID = iD.HasID;
+                    var rightHasID = HasID;
+
+                    if (!leftHasID && iD.GenerateOnGet)
+                    {
+                        iD.Generate();
+                        leftHasID = iD.HasID;
+                    }
+
+                    if (!rightHasID && GenerateOnGet)
+                    {
+                        Generate();
+                        rightHasID = HasID;
+                    }
+
+                    if (leftHasID && rightHasID)
+                        res = _iD.Equals(iD._iD);
+                }
+            }
+
+            return res;
         }
 
         public override int GetHashCode()