diff --git a/SafeExamBrowser.Core.Contracts/InstanceIdentifier.cs b/SafeExamBrowser.Applications.Contracts/InstanceIdentifier.cs
similarity index 96%
rename from SafeExamBrowser.Core.Contracts/InstanceIdentifier.cs
rename to SafeExamBrowser.Applications.Contracts/InstanceIdentifier.cs
index d262dfb8..94b5522a 100644
--- a/SafeExamBrowser.Core.Contracts/InstanceIdentifier.cs
+++ b/SafeExamBrowser.Applications.Contracts/InstanceIdentifier.cs
@@ -6,7 +6,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
-namespace SafeExamBrowser.Core.Contracts
+namespace SafeExamBrowser.Applications.Contracts
 {
 	/// <summary>
 	/// Defines an identifier which uniquely identifies an instance in the context of a (third-party) application.
diff --git a/SafeExamBrowser.Applications.Contracts/SafeExamBrowser.Applications.Contracts.csproj b/SafeExamBrowser.Applications.Contracts/SafeExamBrowser.Applications.Contracts.csproj
index 7a105561..24dc5600 100644
--- a/SafeExamBrowser.Applications.Contracts/SafeExamBrowser.Applications.Contracts.csproj
+++ b/SafeExamBrowser.Applications.Contracts/SafeExamBrowser.Applications.Contracts.csproj
@@ -60,6 +60,7 @@
     <Compile Include="IApplication.cs" />
     <Compile Include="IApplicationInfo.cs" />
     <Compile Include="IApplicationInstance.cs" />
+    <Compile Include="InstanceIdentifier.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>
diff --git a/SafeExamBrowser.Browser/BrowserInstanceIdentifier.cs b/SafeExamBrowser.Browser/BrowserInstanceIdentifier.cs
index a3770dad..c74828d5 100644
--- a/SafeExamBrowser.Browser/BrowserInstanceIdentifier.cs
+++ b/SafeExamBrowser.Browser/BrowserInstanceIdentifier.cs
@@ -6,7 +6,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
-using SafeExamBrowser.Core.Contracts;
+using SafeExamBrowser.Applications.Contracts;
 
 namespace SafeExamBrowser.Browser
 {
diff --git a/SafeExamBrowser.Core.Contracts/SafeExamBrowser.Core.Contracts.csproj b/SafeExamBrowser.Core.Contracts/SafeExamBrowser.Core.Contracts.csproj
index bde04511..ff9f5b20 100644
--- a/SafeExamBrowser.Core.Contracts/SafeExamBrowser.Core.Contracts.csproj
+++ b/SafeExamBrowser.Core.Contracts/SafeExamBrowser.Core.Contracts.csproj
@@ -54,7 +54,6 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="IIconResource.cs" />
-    <Compile Include="InstanceIdentifier.cs" />
     <Compile Include="OperationModel\Events\ActionRequiredEventArgs.cs" />
     <Compile Include="OperationModel\Events\ActionRequiredEventHandler.cs" />
     <Compile Include="OperationModel\Events\ProgressChangedEventArgs.cs" />