diff --git a/src/Views/About.axaml b/src/Views/About.axaml
index c76dee78..14c40dad 100644
--- a/src/Views/About.axaml
+++ b/src/Views/About.axaml
@@ -7,6 +7,7 @@
         mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
         x:Class="SourceGit.Views.About"
         x:DataType="v:About"
+        Icon="/App.ico"
         Title="{DynamicResource Text.About}"
         Background="{DynamicResource Brush.Window}"
         SizeToContent="WidthAndHeight"
diff --git a/src/Views/AssumeUnchangedManager.axaml b/src/Views/AssumeUnchangedManager.axaml
index 3e535966..dfb0b758 100644
--- a/src/Views/AssumeUnchangedManager.axaml
+++ b/src/Views/AssumeUnchangedManager.axaml
@@ -8,6 +8,7 @@
         mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
         x:Class="SourceGit.Views.AssumeUnchangedManager"
         x:DataType="vm:AssumeUnchangedManager"
+        Icon="/App.ico"
         Title="{DynamicResource Text.AssumeUnchanged}"
         Background="{DynamicResource Brush.Window}"
         Width="600" Height="400"
diff --git a/src/Views/Blame.axaml b/src/Views/Blame.axaml
index d3d054da..aa8232f9 100644
--- a/src/Views/Blame.axaml
+++ b/src/Views/Blame.axaml
@@ -10,6 +10,7 @@
         x:Class="SourceGit.Views.Blame"
         x:Name="me"
         x:DataType="vm:Blame"
+        Icon="/App.ico"
         Title="{DynamicResource Text.Blame}"
         WindowStartupLocation="CenterOwner"
         BorderThickness="1"
diff --git a/src/Views/FileHistories.axaml b/src/Views/FileHistories.axaml
index daeee4b9..66aab09c 100644
--- a/src/Views/FileHistories.axaml
+++ b/src/Views/FileHistories.axaml
@@ -10,6 +10,7 @@
         x:Class="SourceGit.Views.FileHistories"
         x:DataType="vm:FileHistories"
         x:Name="me"
+        Icon="/App.ico"
         Title="{DynamicResource Text.FileHistory}"
         MinWidth="1280" MinHeight="720"
         BorderThickness="1"
diff --git a/src/Views/Preference.axaml b/src/Views/Preference.axaml
index 720ffae3..4417db65 100644
--- a/src/Views/Preference.axaml
+++ b/src/Views/Preference.axaml
@@ -10,6 +10,7 @@
         x:Class="SourceGit.Views.Preference"
         x:DataType="vm:Preference"
         x:Name="me"
+        Icon="/App.ico"
         Title="{DynamicResource Text.Preference}"
         Background="{DynamicResource Brush.Window}"
         Width="600" SizeToContent="Height"