diff --git a/build/VS2010/HEVC_encoder.vcxproj b/build/VS2010/HEVC_encoder.vcxproj
index 601df482..2621bc29 100644
--- a/build/VS2010/HEVC_encoder.vcxproj
+++ b/build/VS2010/HEVC_encoder.vcxproj
@@ -100,7 +100,6 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;WIN64;X64;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <CompileAs>CompileAsC</CompileAs>
       <AssemblerOutput>AssemblyAndSourceCode</AssemblerOutput>
     </ClCompile>
diff --git a/src/bitstream.c b/src/bitstream.c
index 227c924a..020b4b41 100644
--- a/src/bitstream.c
+++ b/src/bitstream.c
@@ -17,7 +17,7 @@
 #include <string.h>
 #include <stdarg.h>
 //for hton
-#ifdef WIN32
+#ifdef _WIN32
 #include <Winsock2.h>
 #else
 #include <net/hton.h>