diff --git a/src/OpenGL/libGLES_CM/libGLES_CM.vcxproj b/src/OpenGL/libGLES_CM/libGLES_CM.vcxproj
index e702386..95b0101 100644
--- a/src/OpenGL/libGLES_CM/libGLES_CM.vcxproj
+++ b/src/OpenGL/libGLES_CM/libGLES_CM.vcxproj
@@ -124,7 +124,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>$(SolutionDir);$(ProjectDir)/..;$(ProjectDir)/../..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(SolutionDir)\src;$(ProjectDir)/..;$(ProjectDir)/../..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;EGLAPI=;GL_API=;GL_APICALL=;GL_GLEXT_PROTOTYPES;_DEBUG;_WINDOWS;_USRDLL;LIBGLES_CM_EXPORTS;_CRT_SECURE_NO_DEPRECATE;NOMINMAX;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
@@ -152,7 +152,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>$(SolutionDir);$(ProjectDir)/..;$(ProjectDir)/../..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(SolutionDir)\src;$(ProjectDir)/..;$(ProjectDir)/../..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;EGLAPI=;GL_API=;GL_APICALL=;GL_GLEXT_PROTOTYPES;_DEBUG;_WINDOWS;_USRDLL;LIBGLES_CM_EXPORTS;_CRT_SECURE_NO_DEPRECATE;NOMINMAX;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>