diff --git a/src/platforms/px4_defines.h b/src/platforms/px4_defines.h
index 6b6a03893b..325832f0f1 100644
--- a/src/platforms/px4_defines.h
+++ b/src/platforms/px4_defines.h
@@ -50,7 +50,6 @@
 /*
  * Building for running within the ROS environment
  */
-#define __EXPORT
 #define noreturn_function
 #ifdef __cplusplus
 #include "ros/ros.h"
diff --git a/src/platforms/px4_middleware.h b/src/platforms/px4_middleware.h
index cd52fd650b..735d34234a 100644
--- a/src/platforms/px4_middleware.h
+++ b/src/platforms/px4_middleware.h
@@ -42,10 +42,6 @@
 #include <stdint.h>
 #include <unistd.h>
 
-#if defined(__PX4_ROS)
-#define __EXPORT
-#endif
-
 namespace px4
 {