diff --git a/include/asterisk/compat.h b/include/asterisk/compat.h
index 3eb6c96a2d..252ce914a2 100644
--- a/include/asterisk/compat.h
+++ b/include/asterisk/compat.h
@@ -70,7 +70,7 @@
 #endif
 
 #ifndef AST_POLL_COMPAT
-#include <sys/poll.h>
+#include <poll.h>
 #else
 #include "asterisk/poll-compat.h"
 #endif
diff --git a/include/asterisk/poll-compat.h b/include/asterisk/poll-compat.h
index cbb6109251..72ac2c3e2f 100644
--- a/include/asterisk/poll-compat.h
+++ b/include/asterisk/poll-compat.h
@@ -83,7 +83,7 @@
 
 #ifndef AST_POLL_COMPAT
 
-#include <sys/poll.h>
+#include <poll.h>
 
 #define ast_poll(a, b, c) poll(a, b, c)
 
diff --git a/main/ast_expr2.c b/main/ast_expr2.c
index d41072d6e4..c700b01d73 100644
--- a/main/ast_expr2.c
+++ b/main/ast_expr2.c
@@ -94,6 +94,7 @@
 #define ASTMM_LIBC ASTMM_REDIRECT
 #include "asterisk.h"
 
+#include <sys/cdefs.h>
 #include <sys/types.h>
 #include <stdio.h>
 
diff --git a/main/ast_expr2.y b/main/ast_expr2.y
index 762e83d840..df87bcc7f6 100644
--- a/main/ast_expr2.y
+++ b/main/ast_expr2.y
@@ -15,6 +15,7 @@
 #define ASTMM_LIBC ASTMM_REDIRECT
 #include "asterisk.h"
 
+#include <sys/cdefs.h>
 #include <sys/types.h>
 #include <stdio.h>