diff --git a/include/cereal/archives/json.hpp b/include/cereal/archives/json.hpp
index fa71e2ed1..b0afd7d8b 100644
--- a/include/cereal/archives/json.hpp
+++ b/include/cereal/archives/json.hpp
@@ -102,7 +102,7 @@ namespace cereal
       {
         public:
           //! Default options
-          static Options Default(){ return {}; }
+          static Options Default(){ return Options(); }
 
           //! Default options with no indentation
           static Options NoIndent(){ return Options( std::numeric_limits<double>::max_digits10, IndentChar::space, 0 ); }
diff --git a/include/cereal/archives/xml.hpp b/include/cereal/archives/xml.hpp
index 71cf9f22a..924374bc5 100644
--- a/include/cereal/archives/xml.hpp
+++ b/include/cereal/archives/xml.hpp
@@ -99,7 +99,7 @@ namespace cereal
       {
         public:
           //! Default options
-          static Options Default(){ return {}; }
+          static Options Default(){ return Options(); }
 
           //! Default options with no indentation
           static Options NoIndent(){ return Options( std::numeric_limits<double>::max_digits10, false ); }
diff --git a/vs2013/unittests/unittests.vcxproj b/vs2013/unittests/unittests.vcxproj
index 8830dcaa0..599efc6a7 100644
--- a/vs2013/unittests/unittests.vcxproj
+++ b/vs2013/unittests/unittests.vcxproj
@@ -124,6 +124,7 @@
       <SDLCheck>true</SDLCheck>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <AdditionalOptions>/bigobj %(AdditionalOptions)</AdditionalOptions>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -138,6 +139,7 @@
       <Optimization>Disabled</Optimization>
       <SDLCheck>true</SDLCheck>
       <AdditionalOptions>/bigobj %(AdditionalOptions)</AdditionalOptions>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -152,6 +154,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
       <AdditionalOptions>/bigobj %(AdditionalOptions)</AdditionalOptions>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -170,6 +173,7 @@
       <SDLCheck>true</SDLCheck>
       <AdditionalOptions>/bigobj %(AdditionalOptions)</AdditionalOptions>
       <EnablePREfast>false</EnablePREfast>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>