diff --git a/Repl.vcxproj b/Repl.vcxproj
index 4d736c2..555ef5c 100644
--- a/Repl.vcxproj
+++ b/Repl.vcxproj
@@ -115,15 +115,13 @@
     <ClCompile>
       <AdditionalIncludeDirectories>$(SolutionDir)/source;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <LanguageStandard_C>stdc17</LanguageStandard_C>
-      <PreprocessorDefinitions>
-      </PreprocessorDefinitions>
+      <PreprocessorDefinitions>%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
       <LanguageStandard_C>stdc17</LanguageStandard_C>
-      <PreprocessorDefinitions>
-      </PreprocessorDefinitions>
+      <PreprocessorDefinitions>%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>$(SolutionDir)/source;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
diff --git a/source/toy_common.h b/source/toy_common.h
index 7cabfbe..a1c45b2 100644
--- a/source/toy_common.h
+++ b/source/toy_common.h
@@ -9,8 +9,6 @@
 #define TOY_VERSION_PATCH 5
 #define TOY_VERSION_BUILD Toy_private_version_build()
 
-const char* Toy_private_version_build();
-
 //platform/compiler-specific instructions
 #if defined(__linux__) || defined(__MINGW32__) || defined(__GNUC__)
 
@@ -30,6 +28,8 @@ const char* Toy_private_version_build();
 
 #endif
 
+TOY_API const char* Toy_private_version_build();
+
 #ifndef TOY_DISABLE_REPL
 
 //for processing the command line arguments in the repl