diff --git a/SparkleLib/windows/SparkleLib.csproj b/SparkleLib/windows/SparkleLib.csproj
index 783df5df..57c0577f 100644
--- a/SparkleLib/windows/SparkleLib.csproj
+++ b/SparkleLib/windows/SparkleLib.csproj
@@ -40,6 +40,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <ConsolePause>false</ConsolePause>
+    <PlatformTarget>x86</PlatformTarget>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>none</DebugType>
diff --git a/SparkleShare/Windows/SparkleShare.csproj b/SparkleShare/Windows/SparkleShare.csproj
index 17599a2d..3566a214 100644
--- a/SparkleShare/Windows/SparkleShare.csproj
+++ b/SparkleShare/Windows/SparkleShare.csproj
@@ -39,6 +39,7 @@
     <DefineConstants>DEBUG</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <PlatformTarget>x86</PlatformTarget>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>none</DebugType>