diff --git a/Deploy-Office-2019.vbproj b/Deploy-Office-2019.vbproj
index 3e43776..69d7fb6 100644
--- a/Deploy-Office-2019.vbproj
+++ b/Deploy-Office-2019.vbproj
@@ -91,6 +91,7 @@
     <Compile Include="My Project\Application.Designer.vb">
       <AutoGen>True</AutoGen>
       <DependentUpon>Application.myapp</DependentUpon>
+      <DesignTime>True</DesignTime>
     </Compile>
     <Compile Include="My Project\Resources.Designer.vb">
       <AutoGen>True</AutoGen>
diff --git a/My Project/Application.Designer.vb b/My Project/Application.Designer.vb
index dcc7fbb..01c1988 100644
--- a/My Project/Application.Designer.vb	
+++ b/My Project/Application.Designer.vb	
@@ -24,7 +24,7 @@ Namespace My
         <Global.System.Diagnostics.DebuggerStepThroughAttribute()>  _
         Public Sub New()
             MyBase.New(Global.Microsoft.VisualBasic.ApplicationServices.AuthenticationMode.Windows)
-            Me.IsSingleInstance = false
+            Me.IsSingleInstance = true
             Me.EnableVisualStyles = true
             Me.SaveMySettingsOnExit = true
             Me.ShutDownStyle = Global.Microsoft.VisualBasic.ApplicationServices.ShutdownMode.AfterMainFormCloses
diff --git a/My Project/Application.myapp b/My Project/Application.myapp
index db2c607..6a1b2fa 100644
--- a/My Project/Application.myapp	
+++ b/My Project/Application.myapp	
@@ -2,7 +2,7 @@
 <MyApplicationData xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
   <MySubMain>true</MySubMain>
   <MainForm>Main</MainForm>
-  <SingleInstance>false</SingleInstance>
+  <SingleInstance>true</SingleInstance>
   <ShutdownMode>0</ShutdownMode>
   <EnableVisualStyles>true</EnableVisualStyles>
   <AuthenticationMode>0</AuthenticationMode>