diff --git a/Revird/Revird.vcxproj b/Revird/Revird.vcxproj
index 765efe7..ca3f97c 100644
--- a/Revird/Revird.vcxproj
+++ b/Revird/Revird.vcxproj
@@ -83,6 +83,9 @@
     <Link>
       <EntryPointSymbol>DriverEntry</EntryPointSymbol>
     </Link>
+    <ClCompile>
+      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <DriverSign>