diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9d75d38e9..a1594ae3b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -84,6 +84,18 @@ if(WIN32)
   list(APPEND CMAKE_PREFIX_PATH "${WIN_EXTRA_LIBS_PATH}" "${WIN_EXTRA_LIBS_PATH}/SDL")  # hints for FindSDL
 endif()
 
+if(APPLE)
+  execute_process(COMMAND xcrun --show-sdk-path
+    OUTPUT_VARIABLE SDKROOT
+    ERROR_QUIET
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+  message("-- SDKROOT: ${SDKROOT}")
+  set(CMAKE_OSX_SYSROOT ${SDKROOT})
+  set(SYSROOT_ARG -isysroot ${SDKROOT})
+endif()
+
+
 # Python check
 find_package(PythonInterp 3 REQUIRED)
 if(PYTHONINTERP_FOUND)
diff --git a/radio/src/lua/CMakeLists.txt b/radio/src/lua/CMakeLists.txt
index 8325bb2aa..ac6f0176d 100644
--- a/radio/src/lua/CMakeLists.txt
+++ b/radio/src/lua/CMakeLists.txt
@@ -9,7 +9,7 @@ macro(add_lua_export_target target)
 endmacro(add_lua_export_target)
 
 set(LUA_INCLUDES
-  -DCPUARM -DLUA -DLUA_INPUTS -DLUA_EXPORT_GENERATION -DSIMU
+  -DCPUARM -DLUA -DLUA_INPUTS -DLUA_EXPORT_GENERATION -DSIMU ${SYSROOT_ARG}
   -I${RADIO_SRC_DIR}
   -I${RADIO_SRC_DIR}/targets/${TARGET_DIR}
   -I${RADIO_SRC_DIR}/thirdparty
diff --git a/radio/src/targets/horus/CMakeLists.txt b/radio/src/targets/horus/CMakeLists.txt
index 683544312..d265a96a2 100644
--- a/radio/src/targets/horus/CMakeLists.txt
+++ b/radio/src/targets/horus/CMakeLists.txt
@@ -367,7 +367,7 @@ if(PYTHONINTERP_FOUND)
   add_custom_command(
     OUTPUT ${PROJECT_BINARY_DIR}/radio/src/datacopy.cpp
     WORKING_DIRECTORY ${RADIO_DIRECTORY}/src
-    COMMAND ${PYTHON_EXECUTABLE} ${RADIO_DIRECTORY}/util/generate_datacopy.py datastructs.h -DPCBHORUS -DPCBX10 -DCPUARM -DSTM32F4 -DSTM32F429_439xx -DCOLORLCD -DBACKUP -DSIMU -I. -Igui/colorlcd -Itargets/horus -Itargets/common/arm/stm32 -I${THIRDPARTY_DIR} -I${THIRDPARTY_DIR}/libopenui/src -I${THIRDPARTY_DIR}/STM32F4xx_DSP_StdPeriph_Lib_V1.8.0/Libraries/STM32F4xx_StdPeriph_Driver/inc -I${THIRDPARTY_DIR}/STM32F4xx_DSP_StdPeriph_Lib_V1.8.0/Libraries/CMSIS/Device/ST/STM32F4xx/Include -I${THIRDPARTY_DIR}/STM32F4xx_DSP_StdPeriph_Lib_V1.8.0/Libraries/CMSIS/Include ${gcc_include_path} -Wno-pragma-once-outside-header > ${PROJECT_BINARY_DIR}/radio/src/datacopy.cpp
+    COMMAND ${PYTHON_EXECUTABLE} ${RADIO_DIRECTORY}/util/generate_datacopy.py datastructs.h -DPCBHORUS -DPCBX10 -DCPUARM -DSTM32F4 -DSTM32F429_439xx -DCOLORLCD -DBACKUP -DSIMU -I. -Igui/colorlcd -Itargets/horus -Itargets/common/arm/stm32 -I${THIRDPARTY_DIR} -I${THIRDPARTY_DIR}/libopenui/src -I${THIRDPARTY_DIR}/STM32F4xx_DSP_StdPeriph_Lib_V1.8.0/Libraries/STM32F4xx_StdPeriph_Driver/inc -I${THIRDPARTY_DIR}/STM32F4xx_DSP_StdPeriph_Lib_V1.8.0/Libraries/CMSIS/Device/ST/STM32F4xx/Include -I${THIRDPARTY_DIR}/STM32F4xx_DSP_StdPeriph_Lib_V1.8.0/Libraries/CMSIS/Include ${gcc_include_path} -Wno-pragma-once-outside-header ${SYSROOT_ARG} > ${PROJECT_BINARY_DIR}/radio/src/datacopy.cpp
     DEPENDS ${RADIO_DIRECTORY}/src/datastructs.h ${RADIO_DIRECTORY}/util/generate_datacopy.py
     )
 
diff --git a/radio/src/targets/nv14/CMakeLists.txt b/radio/src/targets/nv14/CMakeLists.txt
index cf18040ec..a3f7fb95a 100644
--- a/radio/src/targets/nv14/CMakeLists.txt
+++ b/radio/src/targets/nv14/CMakeLists.txt
@@ -203,12 +203,12 @@ MACRO(GET_GCC_INCLUDE_PATH gcc_include_path)
 ENDMACRO()
 
 if(PYTHONINTERP_FOUND)
-  GET_GCC_INCLUDE_PATH(arm_gcc_include_path)
+  GET_GCC_INCLUDE_PATH(gcc_include_path)
 
   add_custom_command(
     OUTPUT ${PROJECT_BINARY_DIR}/radio/src/datacopy.cpp
     WORKING_DIRECTORY ${RADIO_DIRECTORY}/src
-    COMMAND ${PYTHON_EXECUTABLE} ${RADIO_DIRECTORY}/util/generate_datacopy.py datastructs.h -DPCBFLYSKY -DPCBNV14 -DCPUARM -DSTM32F4 -DSTM32F429_439xx -DCOLORLCD -DBACKUP -DSIMU -I. -Igui/colorlcd -Itargets/nv14 -Itargets/common/arm/stm32 -I${THIRDPARTY_DIR} -I${THIRDPARTY_DIR}/libopenui/src -I${THIRDPARTY_DIR}/STM32F4xx_DSP_StdPeriph_Lib_V1.8.0/Libraries/STM32F4xx_StdPeriph_Driver/inc -I${THIRDPARTY_DIR}/STM32F4xx_DSP_StdPeriph_Lib_V1.8.0/Libraries/CMSIS/Device/ST/STM32F4xx/Include -I${THIRDPARTY_DIR}/STM32F4xx_DSP_StdPeriph_Lib_V1.8.0/Libraries/CMSIS/Include ${arm_gcc_include_path} -Wno-pragma-once-outside-header > ${PROJECT_BINARY_DIR}/radio/src/datacopy.cpp
+    COMMAND ${PYTHON_EXECUTABLE} ${RADIO_DIRECTORY}/util/generate_datacopy.py datastructs.h -DPCBFLYSKY -DPCBNV14 -DCPUARM -DSTM32F4 -DSTM32F429_439xx -DCOLORLCD -DBACKUP -DSIMU -I. -Igui/colorlcd -Itargets/nv14 -Itargets/common/arm/stm32 -I${THIRDPARTY_DIR} -I${THIRDPARTY_DIR}/libopenui/src -I${THIRDPARTY_DIR}/STM32F4xx_DSP_StdPeriph_Lib_V1.8.0/Libraries/STM32F4xx_StdPeriph_Driver/inc -I${THIRDPARTY_DIR}/STM32F4xx_DSP_StdPeriph_Lib_V1.8.0/Libraries/CMSIS/Device/ST/STM32F4xx/Include -I${THIRDPARTY_DIR}/STM32F4xx_DSP_StdPeriph_Lib_V1.8.0/Libraries/CMSIS/Include ${gcc_include_path} -Wno-pragma-once-outside-header ${SYSROOT_ARG} > ${PROJECT_BINARY_DIR}/radio/src/datacopy.cpp
     DEPENDS ${RADIO_DIRECTORY}/src/datastructs.h ${RADIO_DIRECTORY}/util/generate_datacopy.py
     )