diff --git a/sys/ViGEmBus.vcxproj b/sys/ViGEmBus.vcxproj
index 4e545fb..e190b14 100644
--- a/sys/ViGEmBus.vcxproj
+++ b/sys/ViGEmBus.vcxproj
@@ -54,7 +54,7 @@
     <KMDF_VERSION_MAJOR>1</KMDF_VERSION_MAJOR>
     <KMDF_VERSION_MINOR>9</KMDF_VERSION_MINOR>
     <ALLOW_DATE_TIME>1</ALLOW_DATE_TIME>
-    <SignMode>Off</SignMode>
+    <SignMode>TestSign</SignMode>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <TargetVersion>
@@ -79,7 +79,7 @@
     <KMDF_VERSION_MAJOR>1</KMDF_VERSION_MAJOR>
     <KMDF_VERSION_MINOR>9</KMDF_VERSION_MINOR>
     <ALLOW_DATE_TIME>1</ALLOW_DATE_TIME>
-    <SignMode>Off</SignMode>
+    <SignMode>TestSign</SignMode>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">