diff --git a/src/MagicOnion.Client.SourceGenerator.Unity/MagicOnion.Client.SourceGenerator.Unity.csproj b/src/MagicOnion.Client.SourceGenerator.Unity/MagicOnion.Client.SourceGenerator.Unity.csproj
index a4014502c..41a16f916 100644
--- a/src/MagicOnion.Client.SourceGenerator.Unity/MagicOnion.Client.SourceGenerator.Unity.csproj
+++ b/src/MagicOnion.Client.SourceGenerator.Unity/MagicOnion.Client.SourceGenerator.Unity.csproj
@@ -13,6 +13,8 @@
     <AnalyzerLanguage>cs</AnalyzerLanguage>
     <RootNamespace>MagicOnion.Client.SourceGenerator</RootNamespace>
 
+    <!-- We don't need to publish the package to NuGet.  -->
+    <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/MagicOnion.Client.SourceGenerator/MagicOnion.Client.SourceGenerator.csproj b/src/MagicOnion.Client.SourceGenerator/MagicOnion.Client.SourceGenerator.csproj
index ede71929a..31baaafd0 100644
--- a/src/MagicOnion.Client.SourceGenerator/MagicOnion.Client.SourceGenerator.csproj
+++ b/src/MagicOnion.Client.SourceGenerator/MagicOnion.Client.SourceGenerator.csproj
@@ -16,7 +16,7 @@
     <AnalyzerLanguage>cs</AnalyzerLanguage>
 
     <!-- We don't need to publish the package to NuGet. MagicOnion.Client.SourceGenerator.dll is bundled with MagicOnion.Client  -->
-    <Packable>false</Packable>
+    <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>