diff --git a/ChronoJsonDiffPatch/ChronoJsonDiffPatch/PatchingException.cs b/ChronoJsonDiffPatch/ChronoJsonDiffPatch/PatchingException.cs
index 063dac7..991a715 100644
--- a/ChronoJsonDiffPatch/ChronoJsonDiffPatch/PatchingException.cs
+++ b/ChronoJsonDiffPatch/ChronoJsonDiffPatch/PatchingException.cs
@@ -18,7 +18,7 @@ public class PatchingException<TEntity> : Exception
     /// <summary>
     /// state of the entity at the point where Applying <see cref="FailedPatch"/> failed
     /// </summary>
-    public JToken StateOfEntityBeforePatch { get; }
+    public TEntity StateOfEntityBeforePatch { get; }
 
     /// <summary>
     /// patch that could not be applied
@@ -41,7 +41,7 @@ public class PatchingException<TEntity> : Exception
     /// <param name="innerException"></param>
     public PatchingException(
         TEntity stateOfEntityBeforeAnyPatch,
-        JToken left,
+        TEntity left,
         JToken? patch,
         int index,
         string message,
diff --git a/ChronoJsonDiffPatch/ChronoJsonDiffPatch/TimeRangePatchChain.cs b/ChronoJsonDiffPatch/ChronoJsonDiffPatch/TimeRangePatchChain.cs
index 89404bd..736291b 100644
--- a/ChronoJsonDiffPatch/ChronoJsonDiffPatch/TimeRangePatchChain.cs
+++ b/ChronoJsonDiffPatch/ChronoJsonDiffPatch/TimeRangePatchChain.cs
@@ -599,7 +599,7 @@ var existingPatch in GetAll()
 
                         throw new PatchingException<TEntity>(
                             stateOfEntityBeforeAnyPatch: initialEntity,
-                            left: left,
+                            left: entityBeforePatch,
                             patch: jtokenPatch,
                             index: index,
                             message: $"Failed to apply patches ({PatchingDirection}): {exc.Message}; None of the {_skipConditions?.Count() ?? 0} skip conditions applied",
@@ -645,7 +645,7 @@ var existingPatch in GetAll()
 
                         throw new PatchingException<TEntity>(
                             stateOfEntityBeforeAnyPatch: initialEntity,
-                            left: left,
+                            left: entityBeforePatch,
                             patch: jtokenPatch,
                             index: index,
                             message: $"Failed to apply patches ({PatchingDirection}): {exc.Message}; None of the {_skipConditions?.Count() ?? 0} skip conditions applied",