diff --git a/vs/xmrig.vcxproj b/vs/xmrig.vcxproj
index 5f8f4207..e8eaf6fc 100644
--- a/vs/xmrig.vcxproj
+++ b/vs/xmrig.vcxproj
@@ -305,6 +305,7 @@
       <PreprocessorDefinitions>XMRIG_PROJECT;XMRIG_NO_HTTPD;XMRIG_NO_GOOGLE_BREAKPAD;XMRIG_NO_API;__STDC_FORMAT_MACROS;APP_DEBUG</PreprocessorDefinitions>
       <InlineFunctionExpansion>Disabled</InlineFunctionExpansion>
       <OmitFramePointers>false</OmitFramePointers>
+      <Optimization>Disabled</Optimization>
     </ClCompile>
     <Link>
       <AdditionalLibraryDirectories>$(SolutionDir)\..\..\libuv-1.x\Release\$(Platform)\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
@@ -342,6 +343,7 @@
       <AdditionalIncludeDirectories>$(SolutionDir)\..\src\;$(SolutionDir)\..\src\3rdparty;$(SolutionDir)\..\src\3rdparty\libcpuid;$(SolutionDir)\..\src\3rdparty\rapidjson\msinttypes;$(SolutionDir)\..\..\libuv-1.x\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <PreprocessorDefinitions>XMRIG_PROJECT;XMRIG_NO_HTTPD;XMRIG_NO_GOOGLE_BREAKPAD;XMRIG_NO_API;__STDC_FORMAT_MACROS;APP_DEBUG</PreprocessorDefinitions>
+      <Optimization>Disabled</Optimization>
       <InlineFunctionExpansion>Disabled</InlineFunctionExpansion>
     </ClCompile>
     <Link>