diff --git a/sonaranalyzer-dotnet/tests/SonarAnalyzer.UnitTest/TestCases/DoNotOverwriteCollectionElements.cs b/sonaranalyzer-dotnet/tests/SonarAnalyzer.UnitTest/TestCases/DoNotOverwriteCollectionElements.cs
index 399a7316b13..6a44b63f6da 100644
--- a/sonaranalyzer-dotnet/tests/SonarAnalyzer.UnitTest/TestCases/DoNotOverwriteCollectionElements.cs
+++ b/sonaranalyzer-dotnet/tests/SonarAnalyzer.UnitTest/TestCases/DoNotOverwriteCollectionElements.cs
@@ -39,6 +39,13 @@ void SameIndexOnList(List<int> list)
             list[0] = 42; // Noncompliant
         }
 
+        void ListAddFP(List<int> list)
+        {
+            // FP - List.Add method should not raise any issue when used with same elements
+            list.Add(42); // Secondary
+            list.Add(42); // Noncompliant
+        }
+
         void SameIndexOnArray(CustomIndexerOneArg obj)
         {
             obj["foo"] = 42; // Compliant, not a collection or dictionary
diff --git a/sonaranalyzer-dotnet/tests/SonarAnalyzer.UnitTest/TestCases/DoNotOverwriteCollectionElements.vb b/sonaranalyzer-dotnet/tests/SonarAnalyzer.UnitTest/TestCases/DoNotOverwriteCollectionElements.vb
index dec223de545..878657bc1ca 100644
--- a/sonaranalyzer-dotnet/tests/SonarAnalyzer.UnitTest/TestCases/DoNotOverwriteCollectionElements.vb
+++ b/sonaranalyzer-dotnet/tests/SonarAnalyzer.UnitTest/TestCases/DoNotOverwriteCollectionElements.vb
@@ -62,6 +62,11 @@ Namespace Tests.TestCases
       list(0) = 1 ' Noncompliant
     End Sub
 
+	Private Sub ListAddFP(ByVal list As List(Of String))
+      list.Add("MyText") ' Secondary
+      list.Add("MyText") ' Noncompliant
+    End Sub
+
     Private Sub SameIndexSpacedOut(ByVal names() As String)
       names("a") = "a" ' Secondary
       names("b") = "b"