diff --git a/radio/src/definitions.h b/radio/src/definitions.h
index df5bb4165..20d8e5352 100644
--- a/radio/src/definitions.h
+++ b/radio/src/definitions.h
@@ -21,8 +21,11 @@
 #ifndef _DEFINITIONS_H_
 #define _DEFINITIONS_H_
 
-#if defined(SIMU)
-  #define __ALIGNED
+#if defined(SIMU) &&  __GNUC__
+  #define __ALIGNED           __attribute__((aligned(32)))
+  #define __SECTION_USED(s)   __attribute__((used))
+#elif defined(SIMU)
+  #define  __ALIGNED
   #define __SECTION_USED(s)
 #else
   #define __ALIGNED          __attribute__((aligned(32)))
diff --git a/radio/src/maths.cpp b/radio/src/maths.cpp
index f1244b1af..b93aaa3e1 100644
--- a/radio/src/maths.cpp
+++ b/radio/src/maths.cpp
@@ -138,6 +138,11 @@ void extractLatitudeLongitude(uint32_t * latitude, uint32_t * longitude)
   *longitude = ((uint32_t)(qr.quot) * 1000000) + (((uint32_t)(qr.rem) * 10000 + telemetryData.hub.gpsLongitude_ap) * 5) / 3;
 }
 
+#if __clang__
+// clang does not like packed member access at all. Since mavlink is a 3rd party library, ignore the errors
+#pragma clang diagnostic push
+#pragma clang diagnostic warning "-Waddress-of-packed-member"
+#endif
 void getGpsPilotPosition()
 {
   extractLatitudeLongitude(&telemetryData.hub.pilotLatitude, &telemetryData.hub.pilotLongitude);