diff --git a/slirp/slirp.h b/slirp/slirp.h
index 400f585cec..1f47848271 100644
--- a/slirp/slirp.h
+++ b/slirp/slirp.h
@@ -40,10 +40,6 @@ typedef char *caddr_t;
 # include <sys/select.h>
 #endif
 
-#ifdef HAVE_SYS_WAIT_H
-# include <sys/wait.h>
-#endif
-
 #ifdef HAVE_SYS_FILIO_H
 # include <sys/filio.h>
 #endif
diff --git a/slirp/slirp_config.h b/slirp/slirp_config.h
index e95284071a..9becb98e11 100644
--- a/slirp/slirp_config.h
+++ b/slirp/slirp_config.h
@@ -32,9 +32,6 @@
 #define DECLARE_IOVEC
 #endif
 
-/* Define if you have a POSIX.1 sys/wait.h */
-#undef HAVE_SYS_WAIT_H
-
 /* Define if you have sys/select.h */
 #undef HAVE_SYS_SELECT_H
 #ifndef _WIN32