diff --git a/polyp/inet_ntop.c b/polyp/inet_ntop.c
index 19f29f869..ac2b5295a 100644
--- a/polyp/inet_ntop.c
+++ b/polyp/inet_ntop.c
@@ -24,6 +24,8 @@
 #endif
 
 #include <stdio.h>
+#include <errno.h>
+#include <assert.h>
 
 #ifndef HAVE_INET_NTOP
 
diff --git a/polyp/poll.c b/polyp/poll.c
index cb7e3e7a0..6a260daf0 100644
--- a/polyp/poll.c
+++ b/polyp/poll.c
@@ -32,6 +32,8 @@
 #include <config.h>
 #endif
 
+#include <errno.h>
+
 #ifdef HAVE_SYS_SELECT_H
 #include <sys/select.h>
 #endif