--- otp_src_18.0-orig/erts/emulator/sys/common/erl_poll.h
+++ otp_src_18.0-fixed/erts/emulator/sys/common/erl_poll.h
@@ -140,7 +140,7 @@
 #endif
 
 #define ERTS_POLL_EV_E2N(EV) \
-  ((__uint32_t) (EV))
+  ((uint32_t) (EV))
 #define ERTS_POLL_EV_N2E(EV) \
   ((ErtsPollEvents) (EV))