diff --git a/radio/src/targets/simu/simpgmspace.h b/radio/src/targets/simu/simpgmspace.h
index 8749dcde4..07b0f95f5 100644
--- a/radio/src/targets/simu/simpgmspace.h
+++ b/radio/src/targets/simu/simpgmspace.h
@@ -69,7 +69,6 @@ void sig(int sgn)
 
 #include <inttypes.h>
 #include <stdio.h>
-#include <semaphore.h>
 #include <stddef.h>
 #include <errno.h>