diff --git a/Xeption.Tests/XeptionTests.Logic.DataEqualsWithMessage.cs b/Xeption.Tests/XeptionTests.Logic.DataEqualsWithMessage.cs
index f29b549..c098116 100644
--- a/Xeption.Tests/XeptionTests.Logic.DataEqualsWithMessage.cs
+++ b/Xeption.Tests/XeptionTests.Logic.DataEqualsWithMessage.cs
@@ -25,11 +25,11 @@ public void ShouldReturnTrueAndNullStringIfDataMatchInCount()
             Xeption actualXeption = expectedXeption.DeepClone();
 
             // when
-            var actualComparisonResult = actualXeption.DataEqualsWithDetail(expectedXeption.Data);
+            (bool isEqual, string message) = actualXeption.DataEqualsWithDetail(expectedXeption.Data);
 
             // then
-            actualComparisonResult.IsEqual.Should().BeTrue();
-            actualComparisonResult.Message.Should().BeNullOrEmpty();
+            isEqual.Should().BeTrue();
+            message.Should().BeNullOrEmpty();
         }
 
         [Fact]
@@ -58,12 +58,12 @@ public void ShouldReturnFalsAndMessageStringIfActualDataContainsKeysNotInExpecte
             expectedMessage.AppendLine($"- NOT contain key '{randomKey}'.");
 
             // when
-            var actualComparisonResult = actualXeption.DataEqualsWithDetail(expectedXeption.Data);
+            (bool isEqual, string message) = actualXeption.DataEqualsWithDetail(expectedXeption.Data);
 
             // then
-            actualComparisonResult.IsEqual.Should().BeFalse();
-            actualComparisonResult.Message.Should().NotBeNullOrEmpty();
-            actualComparisonResult.Message.Should().BeEquivalentTo(expectedMessage.ToString());
+            isEqual.Should().BeFalse();
+            message.Should().NotBeNullOrEmpty();
+            message.Should().BeEquivalentTo(expectedMessage.ToString());
         }
 
         [Fact]
@@ -93,13 +93,13 @@ public void ShouldReturnFalseAndMessageStringIfExpectedDataContainsKeysNotInActu
                 $"- contain key '{randomKey}' with value(s) [{randomValue}].");
 
             // when
-            var actualComparisonResult = actualXeption
+            (bool isEqual, string message) = actualXeption
                 .DataEqualsWithDetail(expectedXeption.Data);
 
             // then
-            actualComparisonResult.IsEqual.Should().BeFalse();
-            actualComparisonResult.Message.Should().NotBeNullOrEmpty();
-            actualComparisonResult.Message.Should().BeEquivalentTo(expectedMessage.ToString());
+            isEqual.Should().BeFalse();
+            message.Should().NotBeNullOrEmpty();
+            message.Should().BeEquivalentTo(expectedMessage.ToString());
         }
 
         [Fact]
@@ -134,13 +134,13 @@ public void ShouldReturnFalseAndMessageStringIfExpectedDataContainsKeysMatchingK
                 $"but found value(s) ['{actualValues}'].");
 
             // when
-            var actualComparisonResult = actualXeption
+            (bool isEqual, string message) = actualXeption
                 .DataEqualsWithDetail(expectedXeption.Data);
 
             // then
-            actualComparisonResult.IsEqual.Should().BeFalse();
-            actualComparisonResult.Message.Should().NotBeNullOrEmpty();
-            actualComparisonResult.Message.Should().BeEquivalentTo(expectedMessage.ToString());
+            isEqual.Should().BeFalse();
+            message.Should().NotBeNullOrEmpty();
+            message.Should().BeEquivalentTo(expectedMessage.ToString());
         }
     }
 }
\ No newline at end of file
diff --git a/Xeption/Assertions/XeptionAssertions.cs b/Xeption/Assertions/XeptionAssertions.cs
index a76ce5d..936a62c 100644
--- a/Xeption/Assertions/XeptionAssertions.cs
+++ b/Xeption/Assertions/XeptionAssertions.cs
@@ -80,8 +80,8 @@ private bool InnerExceptionsMatch(
                 return false;
             }
 
-            var typeMatch = actual.GetType().FullName == expected.GetType().FullName;
-            var messageMatch = actual.Message == expected.Message;
+            bool typeMatch = actual.GetType().FullName == expected.GetType().FullName;
+            bool messageMatch = actual.Message == expected.Message;
 
             if (actual is AggregateException actualAggregate && expected is AggregateException expectedAggregate)
             {
@@ -112,7 +112,7 @@ private bool InnerExceptionsMatch(
                 var actualInnerExceptions = actualAggregate.InnerExceptions;
                 var expectedInnerExceptions = expectedAggregate.InnerExceptions;
 
-                var countMatch = actualInnerExceptions.Count == expectedInnerExceptions.Count;
+                bool countMatch = actualInnerExceptions.Count == expectedInnerExceptions.Count;
 
                 if (!countMatch)
                 {