diff --git a/src/cpu/core_dynrec.cpp b/src/cpu/core_dynrec.cpp
index f40409ee7..03a236ce1 100644
--- a/src/cpu/core_dynrec.cpp
+++ b/src/cpu/core_dynrec.cpp
@@ -140,6 +140,12 @@ static struct {
 #define ARMV7LE		0x05
 #define ARMV8LE		0x07
 
+#if !defined(C_TARGETCPU)
+# if defined(_MSC_VER) && defined(_M_AMD64)
+#  define C_TARGETCPU X86_64
+# endif
+#endif
+
 #if C_TARGETCPU == X86_64
 #include "core_dynrec/risc_x64.h"
 #elif C_TARGETCPU == X86
diff --git a/vs2015/dosbox-x.vcxproj b/vs2015/dosbox-x.vcxproj
index eb5ebcba9..7ebed6e83 100644
--- a/vs2015/dosbox-x.vcxproj
+++ b/vs2015/dosbox-x.vcxproj
@@ -682,6 +682,7 @@ copy "$(SolutionDir)\..\CHANGELOG" "$(OutputPath)\changelog.txt"</Command>
     <ClCompile Include="..\src\builtin\tree_exe.cpp" />
     <ClCompile Include="..\src\builtin\xcopy_exe.cpp" />
     <ClCompile Include="..\src\cpu\callback.cpp" />
+    <ClCompile Include="..\src\cpu\core_dynrec.cpp" />
     <ClCompile Include="..\src\cpu\core_dyn_x86.cpp" />
     <ClCompile Include="..\src\cpu\core_full.cpp" />
     <ClCompile Include="..\src\cpu\core_normal.cpp" />
diff --git a/vs2015/dosbox-x.vcxproj.filters b/vs2015/dosbox-x.vcxproj.filters
index c98075710..094a42ca4 100644
--- a/vs2015/dosbox-x.vcxproj.filters
+++ b/vs2015/dosbox-x.vcxproj.filters
@@ -109,6 +109,9 @@
     <Filter Include="Sources\output\direct3d">
       <UniqueIdentifier>{3755469d-f02e-4c3e-b6cd-25db8b71b1fd}</UniqueIdentifier>
     </Filter>
+    <Filter Include="Sources\cpu\core_dynrec">
+      <UniqueIdentifier>{8d1a73c6-be58-4d9f-aa03-b9f57516bedb}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\src\aviwriter\avi_rw_iobuf.cpp">
@@ -891,6 +894,9 @@
     <ClCompile Include="..\src\builtin\dsxmenu_exe_pc98.cpp">
       <Filter>Sources\builtin</Filter>
     </ClCompile>
+    <ClCompile Include="..\src\cpu\core_dynrec.cpp">
+      <Filter>Sources\cpu\core_dynrec</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\src\aviwriter\avi.h">