diff --git a/libsodium.vcxproj b/libsodium.vcxproj
index f6a2f859..4100a188 100644
--- a/libsodium.vcxproj
+++ b/libsodium.vcxproj
@@ -194,7 +194,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>SODIUM_EXPORT=__declspec(dllexport);DLL_EXPORT;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>SODIUM_EXPORT=__declspec(dllexport);SODIUM_DLL_EXPORT;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DisableSpecificWarnings>4244;%(DisableSpecificWarnings)</DisableSpecificWarnings>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <AdditionalIncludeDirectories>$(SolutionDir);$(SolutionDir)src\libsodium\include\sodium;$(SolutionDir)src\libsodium\include\sodium;$(SolutionDir)src\libsodium\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
@@ -225,7 +225,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>SODIUM_EXPORT=__declspec(dllexport);DLL_EXPORT;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>SODIUM_EXPORT=__declspec(dllexport);SODIUM_DLL_EXPORT;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DisableSpecificWarnings>4244;%(DisableSpecificWarnings)</DisableSpecificWarnings>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
     </ClCompile>
@@ -263,7 +263,7 @@
       <Optimization>Full</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>SODIUM_EXPORT=__declspec(dllexport);DLL_EXPORT;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>SODIUM_EXPORT=__declspec(dllexport);SODIUM_DLL_EXPORT;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DisableSpecificWarnings>4244;%(DisableSpecificWarnings)</DisableSpecificWarnings>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
@@ -303,7 +303,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>SODIUM_EXPORT=__declspec(dllexport);DLL_EXPORT;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>SODIUM_EXPORT=__declspec(dllexport);SODIUM_DLL_EXPORT;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DisableSpecificWarnings>4244;%(DisableSpecificWarnings)</DisableSpecificWarnings>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
     </ClCompile>