diff --git a/ArchUnitNET/Fluent/Syntax/Elements/ObjectConditionsDefinition.cs b/ArchUnitNET/Fluent/Syntax/Elements/ObjectConditionsDefinition.cs
index f60ba30af..7de8b78c1 100644
--- a/ArchUnitNET/Fluent/Syntax/Elements/ObjectConditionsDefinition.cs
+++ b/ArchUnitNET/Fluent/Syntax/Elements/ObjectConditionsDefinition.cs
@@ -1439,7 +1439,7 @@ IEnumerable<ConditionResult> Condition(IEnumerable<TRuleType> ruleTypes, Archite
                 {
                     var dynamicFailDescription = "does depend on";
                     var first = true;
-                    foreach (var type in failedObject.GetTypeDependencies().Union(typeList))
+                    foreach (var type in failedObject.GetTypeDependencies().Intersect(typeList))
                     {
                         dynamicFailDescription += first ? " " + type.FullName : " and " + type.FullName;
                         first = false;
@@ -1471,7 +1471,7 @@ IEnumerable<ConditionResult> Condition(IEnumerable<TRuleType> ruleTypes)
                 {
                     var dynamicFailDescription = "does depend on";
                     var first = true;
-                    foreach (var type in failedObject.GetTypeDependencies().Union(typeList))
+                    foreach (var type in failedObject.GetTypeDependencies().Intersect(typeList))
                     {
                         dynamicFailDescription += first ? " " + type.FullName : " and " + type.FullName;
                         first = false;
@@ -1516,7 +1516,7 @@ IEnumerable<ConditionResult> Condition(IEnumerable<TRuleType> ruleTypes, Archite
                 {
                     var dynamicFailDescription = "does depend on";
                     var first = true;
-                    foreach (var type in failedObject.GetTypeDependencies().Union(iTypeList))
+                    foreach (var type in failedObject.GetTypeDependencies().Intersect(iTypeList))
                     {
                         dynamicFailDescription += first ? " " + type.FullName : " and " + type.FullName;
                         first = false;
diff --git a/ArchUnitNETTests/Fluent/DependencyErrorMessageTests.cs b/ArchUnitNETTests/Fluent/DependencyErrorMessageTests.cs
new file mode 100644
index 000000000..95af9e9db
--- /dev/null
+++ b/ArchUnitNETTests/Fluent/DependencyErrorMessageTests.cs
@@ -0,0 +1,77 @@
+//  Copyright 2019 Florian Gather <florian.gather@tngtech.com>
+// 	Copyright 2019 Fritz Brandhuber <fritz.brandhuber@tngtech.com>
+// 	Copyright 2020 Pavel Fischer <rubbiroid@gmail.com>
+// 
+// 	SPDX-License-Identifier: Apache-2.0
+// 
+
+using System.Linq;
+using ArchUnitNET.Domain;
+using ArchUnitNET.Loader;
+using Xunit;
+using static ArchUnitNET.Fluent.ArchRuleDefinition;
+
+namespace ArchUnitNETTests.Fluent
+{
+    public class DependencyErrorMessageTests
+    {
+        private static readonly Architecture Architecture =
+            StaticTestArchitectures.ArchUnitNETTestArchitecture;
+
+        [Fact]
+        public void ErrorMessageType()
+        {
+            var rule = Classes().That()
+                .HaveFullNameMatching(typeof(DependencyErrorMessageTestClass).FullName)
+                .Should().NotDependOnAny(typeof(ErrorMessageClass1), typeof(ErrorMessageClass2));
+            var failDescription = rule.Evaluate(Architecture).ToList().First().Description;
+            Assert.DoesNotContain(typeof(string).FullName, failDescription);
+            Assert.DoesNotContain(typeof(ErrorMessageClass2).FullName, failDescription);
+            Assert.Contains(typeof(ErrorMessageClass1).FullName, failDescription);
+        }
+
+        [Fact]
+        public void ErrorMessageIType()
+        {
+            var dependencyClass = Classes().That().HaveFullNameMatching(typeof(ErrorMessageClass1).FullName).Or().HaveFullNameMatching(typeof(ErrorMessageClass2).FullName)
+                .GetObjects(Architecture).ToList();
+            var rule = Classes().That()
+                .HaveFullNameMatching(typeof(DependencyErrorMessageTestClass).FullName)
+                .Should().NotDependOnAny(dependencyClass);
+            var failDescription = rule.Evaluate(Architecture).ToList().First().Description;
+            Assert.DoesNotContain(typeof(string).FullName, failDescription);
+            Assert.DoesNotContain(typeof(ErrorMessageClass2).FullName, failDescription);
+            Assert.Contains(typeof(ErrorMessageClass1).FullName, failDescription);
+        }
+
+        [Fact]
+        public void ErrorMessageIObjectProvider()
+        {
+            var dependencyClass = Classes().That().HaveFullNameMatching(typeof(ErrorMessageClass1).FullName).Or()
+                .HaveFullNameMatching(typeof(ErrorMessageClass2).FullName);
+            var rule = Classes().That()
+                .HaveFullNameMatching(typeof(DependencyErrorMessageTestClass).FullName)
+                .Should().NotDependOnAny(dependencyClass);
+            var failDescription = rule.Evaluate(Architecture).ToList().First().Description;
+            Assert.DoesNotContain(typeof(string).FullName, failDescription);
+            Assert.DoesNotContain(typeof(ErrorMessageClass2).FullName, failDescription);
+            Assert.Contains(typeof(ErrorMessageClass1).FullName, failDescription);
+        }
+    }
+
+    public class DependencyErrorMessageTestClass
+    {
+        ErrorMessageClass1 testData = new ErrorMessageClass1();
+        private string testString = "";
+    }
+
+    public class ErrorMessageClass1
+    {
+        
+    }
+
+    public class ErrorMessageClass2
+    {
+        
+    }
+}