--- otp_src_17.4/erts/emulator/sys/common/erl_poll.h
+++ otp_src_17.4-fixed/erts/emulator/sys/common/erl_poll.h
@@ -129,7 +129,7 @@
 #include <sys/epoll.h>
 
 #define ERTS_POLL_EV_E2N(EV) \
-  ((__uint32_t) (EV))
+  ((uint32_t) (EV))
 #define ERTS_POLL_EV_N2E(EV) \
   ((ErtsPollEvents) (EV))