--- a/nmap_error.cc
+++ b/nmap_error.cc
@@ -135,6 +135,7 @@
 #include "xml.h"
 
 #include <errno.h>
+#include <time.h>
 
 extern NmapOps o;
 
--- a/nmap.cc
+++ b/nmap.cc
@@ -161,6 +161,7 @@
 #endif
 
 #include <fcntl.h>
+#include <time.h>
 
 #ifdef HAVE_PWD_H
 #include <pwd.h>
--- a/osscan2.cc
+++ b/osscan2.cc
@@ -147,6 +147,7 @@
 
 #include <list>
 #include <math.h>
+#include <time.h>
 
 extern NmapOps o;
 #ifdef WIN32
--- a/output.cc
+++ b/output.cc
@@ -153,6 +153,7 @@
 #include "libnetutil/netutil.h"
 
 #include <math.h>
+#include <time.h>
 
 #include <set>
 #include <vector>