diff --git a/companion/src/CMakeLists.txt b/companion/src/CMakeLists.txt
index 033e096f4..0cfc9a00d 100644
--- a/companion/src/CMakeLists.txt
+++ b/companion/src/CMakeLists.txt
@@ -95,6 +95,7 @@ ADD_CUSTOM_COMMAND(
 
 IF( MSVC )
   SET(CMAKE_CXX_FLAGS "/EHsc /LD")
+  set(INTTYPES_INCLUDE_OPTION -IC:/Programs/msinttypes)
   INCLUDE_DIRECTORIES( ${PROJECT_SOURCE_DIR}/winbuild C:/Programs/pthreads/Pre-built.2/include C:/Programs/msinttypes)
   LINK_DIRECTORIES( C:/Programs/pthreads/Pre-built.2/lib/ )
   SET( PTHREAD_LIBRARY pthreadVC2.lib )
diff --git a/companion/src/firmwares/opentx/simulator/CMakeLists.txt b/companion/src/firmwares/opentx/simulator/CMakeLists.txt
index 579accf52..cedd22808 100644
--- a/companion/src/firmwares/opentx/simulator/CMakeLists.txt
+++ b/companion/src/firmwares/opentx/simulator/CMakeLists.txt
@@ -77,7 +77,7 @@ macro(add_lua_export_target target)
   string(TOUPPER ${target} pcbdefine)
   add_custom_command(
     OUTPUT ${RADIO_SRC_DIRECTORY}/lua/lua_exports_${target}.inc
-    COMMAND ${CMAKE_C_COMPILER} -E -DPCB${pcbdefine} -DCPUARM -DCPUSTM32 -DLUA -DEXPORT myeeprom.h | grep LEXP > lua/lua_exports_${target}.txt
+    COMMAND ${CMAKE_C_COMPILER} -E -DPCB${pcbdefine} -DCPUARM -DCPUSTM32 -DLUA -DEXPORT ${INTTYPES_INCLUDE_OPTION} myeeprom.h | grep LEXP > lua/lua_exports_${target}.txt
     COMMAND python ../util/luaexport.py ${VERSION} lua/lua_exports_${target}.txt lua/lua_exports_${target}.inc lua/lua_fields_${target}.txt
     WORKING_DIRECTORY ${RADIO_SRC_DIRECTORY}
   )