diff --git a/Makefile.libretro b/Makefile.libretro
index 7bc67e4..91e99ba 100644
--- a/Makefile.libretro
+++ b/Makefile.libretro
@@ -302,12 +302,12 @@ else ifneq (,$(findstring windows_msvc2017,$(platform)))
 	PlatformSuffix = $(subst windows_msvc2017_,,$(platform))
 	ifneq (,$(findstring desktop,$(PlatformSuffix)))
 		WinPartition = desktop
-        MSVC2017CompileFlags = -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP
+		MSVC2017CompileFlags = -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -FS
 		LDFLAGS += -MANIFEST -LTCG:incremental -NXCOMPAT -DYNAMICBASE -DEBUG -OPT:REF -INCREMENTAL:NO -SUBSYSTEM:WINDOWS -MANIFESTUAC:"level='asInvoker' uiAccess='false'" -OPT:ICF -ERRORREPORT:PROMPT -NOLOGO -TLBID:1
 		LIBS += kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib
 	else ifneq (,$(findstring uwp,$(PlatformSuffix)))
 		WinPartition = uwp
-		MSVC2017CompileFlags = -DWINAPI_FAMILY=WINAPI_FAMILY_APP -DWINDLL -D_UNICODE -DUNICODE -DWRL_NO_DEFAULT_LIB
+		MSVC2017CompileFlags = -DWINAPI_FAMILY=WINAPI_FAMILY_APP -DWINDLL -D_UNICODE -DUNICODE -DWRL_NO_DEFAULT_LIB -FS
 		LDFLAGS += -APPCONTAINER -NXCOMPAT -DYNAMICBASE -MANIFEST:NO -LTCG -OPT:REF -SUBSYSTEM:CONSOLE -MANIFESTUAC:NO -OPT:ICF -ERRORREPORT:PROMPT -NOLOGO -TLBID:1 -DEBUG:FULL -WINMD:NO
 		LIBS += WindowsApp.lib
 	endif