diff --git a/QuickLook.Native.Shell32/QuickLook.Native.Shell32.vcxproj b/QuickLook.Native.Shell32/QuickLook.Native.Shell32.vcxproj
index 52e1db8..48df4f8 100644
--- a/QuickLook.Native.Shell32/QuickLook.Native.Shell32.vcxproj
+++ b/QuickLook.Native.Shell32/QuickLook.Native.Shell32.vcxproj
@@ -58,6 +58,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;QUICKLOOKSHELL32HELPER_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -72,6 +73,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;QUICKLOOKSHELL32HELPER_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>