diff --git a/config/setup/aws-os_lib-tmplt.c b/config/setup/aws-os_lib-tmplt.c
index 6ec50d86e..ecd177af1 100644
--- a/config/setup/aws-os_lib-tmplt.c
+++ b/config/setup/aws-os_lib-tmplt.c
@@ -160,7 +160,7 @@ pragma Style_Checks ("M32766");
 #else /* _WIN32 */
 
 #ifndef __vxworks
-# include <sys/poll.h>
+# include <poll.h>
 #endif
 
 # include <sys/types.h>