diff --git a/tests/js-tests/project/proj.win8.1-universal/App.WindowsPhone/js-tests.WindowsPhone.vcxproj b/tests/js-tests/project/proj.win8.1-universal/App.WindowsPhone/js-tests.WindowsPhone.vcxproj
index 286e3e7477..e8246f254e 100644
--- a/tests/js-tests/project/proj.win8.1-universal/App.WindowsPhone/js-tests.WindowsPhone.vcxproj
+++ b/tests/js-tests/project/proj.win8.1-universal/App.WindowsPhone/js-tests.WindowsPhone.vcxproj
@@ -123,6 +123,7 @@
MSVCRT;%(IgnoreSpecificDefaultLibraries)
+ /FORCE:MULTIPLE %(AdditionalOptions)
@@ -135,6 +136,9 @@
CC_ENABLE_CHIPMUNK_INTEGRATION=1;%(PreprocessorDefinitions)
ProgramDatabase
+
+ /FORCE:MULTIPLE %(AdditionalOptions)
+