diff --git a/include/wvstrutils.h b/include/wvstrutils.h
index dacad9f..00c3610 100644
--- a/include/wvstrutils.h
+++ b/include/wvstrutils.h
@@ -10,6 +10,8 @@
 #define __WVSTRUTILS_H
 
 #include <sys/types.h> // for off_t
+#include <sys/stat.h>
+#include <unistd.h>
 #include <time.h>
 #include <ctype.h>
 #include "wvstring.h"
diff --git a/utils/wvuid.cc b/utils/wvuid.cc
index 7fa1035..e048c1b 100644
--- a/utils/wvuid.cc
+++ b/utils/wvuid.cc
@@ -6,6 +6,7 @@
  */ 
 #include "wvautoconf.h"
 #include "wvuid.h"
+#include <unistd.h>
 
 #if WIN32