diff --git a/src/platforms/posix/drivers/barosim/baro.cpp b/src/platforms/posix/drivers/barosim/baro.cpp
index 75880b3163..2a02e6c395 100644
--- a/src/platforms/posix/drivers/barosim/baro.cpp
+++ b/src/platforms/posix/drivers/barosim/baro.cpp
@@ -817,7 +817,7 @@ start()
 	}
 
 	DevMgr::releaseHandle(h);
-	return true;
+	return 0;
 }