diff --git a/VisualC/SDL/SDL_VS2010.vcxproj b/VisualC/SDL/SDL_VS2010.vcxproj
index 98c67ec88..de2537f8b 100644
--- a/VisualC/SDL/SDL_VS2010.vcxproj
+++ b/VisualC/SDL/SDL_VS2010.vcxproj
@@ -82,7 +82,7 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\include;%(AdditionalIncludeDirectories);$(DXSDK_DIR)\Include;$(DXSDK_DIR)\Include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\include;%(AdditionalIncludeDirectories);"$(DXSDK_DIR)\Include";</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_DEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <BufferSecurityCheck>false</BufferSecurityCheck>
@@ -115,7 +115,7 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\include;%(AdditionalIncludeDirectories);$(DXSDK_DIR)\Include;</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\include;%(AdditionalIncludeDirectories);"$(DXSDK_DIR)\Include";</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_DEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <BufferSecurityCheck>false</BufferSecurityCheck>
@@ -148,7 +148,7 @@
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
       <IntrinsicFunctions>false</IntrinsicFunctions>
-      <AdditionalIncludeDirectories>..\..\include;%(AdditionalIncludeDirectories);$(DXSDK_DIR)\Include;</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\include;%(AdditionalIncludeDirectories);"$(DXSDK_DIR)\Include";</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>NDEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
@@ -181,7 +181,7 @@
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
       <IntrinsicFunctions>false</IntrinsicFunctions>
-      <AdditionalIncludeDirectories>..\..\include;%(AdditionalIncludeDirectories);$(DXSDK_DIR)\Include;</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\include;%(AdditionalIncludeDirectories);"$(DXSDK_DIR)\Include";</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>NDEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>