diff --git a/VisualStudio/oqs/oqs.vcxproj b/VisualStudio/oqs/oqs.vcxproj
index 3483d6d09..4e4291d71 100644
--- a/VisualStudio/oqs/oqs.vcxproj
+++ b/VisualStudio/oqs/oqs.vcxproj
@@ -334,7 +334,7 @@ copy "$(SolutionDir)..\src\sig_picnic\sig_picnic.h" "$(SolutionDir)include\oqs\"
 mkdir "$(SolutionDir)..\src\sig_picnic\external\msbuild"
 cd "$(SolutionDir)..\src\sig_picnic\external\msbuild"
 cmake -G "Visual Studio 15 2017 Win64" "$(SolutionDir)..\src\sig_picnic\external\"
-msbuild  /t:Rebuild /p:Configuration=Release "$(SolutionDir)..\src\sig_picnic\external\msbuild\picnic.sln"</Command>
+msbuild  /t:Rebuild /p:Configuration=Release;Platform=x64 "$(SolutionDir)..\src\sig_picnic\external\msbuild\picnic.sln"</Command>
     </PreBuildEvent>
     <Lib>
       <AdditionalOptions>/ignore:4006 %(AdditionalOptions)</AdditionalOptions>
@@ -380,7 +380,7 @@ copy "$(SolutionDir)..\src\sig_picnic\sig_picnic.h" "$(SolutionDir)include\oqs\"
 mkdir "$(SolutionDir)..\src\sig_picnic\external\msbuild"
 cd "$(SolutionDir)..\src\sig_picnic\external\msbuild"
 cmake -G "Visual Studio 15 2017 Win64" "$(SolutionDir)..\src\sig_picnic\external\"
-msbuild  /t:Rebuild /p:Configuration=Release "$(SolutionDir)..\src\sig_picnic\external\msbuild\picnic.sln"</Command>
+msbuild  /t:Rebuild /p:Configuration=Release;Platform=x64 "$(SolutionDir)..\src\sig_picnic\external\msbuild\picnic.sln"</Command>
     </PreBuildEvent>
     <Lib>
       <AdditionalOptions>/ignore:4006 %(AdditionalOptions)</AdditionalOptions>
@@ -511,7 +511,7 @@ copy "$(SolutionDir)..\src\sig_picnic\sig_picnic.h" "$(SolutionDir)include\oqs\"
 mkdir "$(SolutionDir)..\src\sig_picnic\external\msbuild"
 cd "$(SolutionDir)..\src\sig_picnic\external\msbuild"
 cmake -G "Visual Studio 15 2017 Win64" "$(SolutionDir)..\src\sig_picnic\external\"
-msbuild  /t:Rebuild /p:Configuration=Release "$(SolutionDir)..\src\sig_picnic\external\msbuild\picnic.sln"</Command>
+msbuild  /t:Rebuild /p:Configuration=Release;Platform=x64 "$(SolutionDir)..\src\sig_picnic\external\msbuild\picnic.sln"</Command>
     </PreBuildEvent>
     <Lib>
       <AdditionalOptions>/ignore:4006 %(AdditionalOptions)</AdditionalOptions>
@@ -561,7 +561,7 @@ copy "$(SolutionDir)..\src\sig_picnic\sig_picnic.h" "$(SolutionDir)include\oqs\"
 mkdir "$(SolutionDir)..\src\sig_picnic\external\msbuild"
 cd "$(SolutionDir)..\src\sig_picnic\external\msbuild"
 cmake -G "Visual Studio 15 2017 Win64" "$(SolutionDir)..\src\sig_picnic\external\"
-msbuild  /t:Rebuild /p:Configuration=Release "$(SolutionDir)..\src\sig_picnic\external\msbuild\picnic.sln"</Command>
+msbuild  /t:Rebuild /p:Configuration=Release;Platform=x64 "$(SolutionDir)..\src\sig_picnic\external\msbuild\picnic.sln"</Command>
     </PreBuildEvent>
     <Lib>
       <AdditionalOptions>/ignore:4006 %(AdditionalOptions)</AdditionalOptions>
diff --git a/VisualStudio/test_sig/test_sig.vcxproj b/VisualStudio/test_sig/test_sig.vcxproj
index c186d121e..cf424299e 100644
--- a/VisualStudio/test_sig/test_sig.vcxproj
+++ b/VisualStudio/test_sig/test_sig.vcxproj
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="DebugDLL|Win32">
@@ -226,7 +226,7 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;oqs.lib;libpicnic_static.lib;Bcrypt.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;oqs.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>$(SolutionDir)$(Platform)\$(Configuration)\</AdditionalLibraryDirectories>
       <AdditionalOptions>/ignore:4006 %(AdditionalOptions)</AdditionalOptions>
     </Link>
@@ -246,7 +246,7 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;oqs.lib;libpicnic.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;oqs.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>$(SolutionDir)$(Platform)\$(Configuration)\</AdditionalLibraryDirectories>
       <AdditionalOptions>/ignore:4006 %(AdditionalOptions)</AdditionalOptions>
     </Link>
@@ -312,7 +312,7 @@
       <SubSystem>Console</SubSystem>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;oqs.lib;libpicnic_static.lib;Bcrypt.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;oqs.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>$(SolutionDir)$(Platform)\$(Configuration)\</AdditionalLibraryDirectories>
       <AdditionalOptions>/ignore:4006 %(AdditionalOptions)</AdditionalOptions>
     </Link>
@@ -336,7 +336,7 @@
       <SubSystem>Console</SubSystem>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;oqs.lib;libpicnic.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;oqs.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>$(SolutionDir)$(Platform)\$(Configuration)\</AdditionalLibraryDirectories>
       <AdditionalOptions>/ignore:4006 %(AdditionalOptions)</AdditionalOptions>
     </Link>
@@ -353,4 +353,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>
\ No newline at end of file