diff --git a/libraries/liblutil/utils.c b/libraries/liblutil/utils.c
index 40ba0a971c..8d5fe6b479 100644
--- a/libraries/liblutil/utils.c
+++ b/libraries/liblutil/utils.c
@@ -8,6 +8,9 @@
 
 #include <ac/stdlib.h>
 #include <ac/string.h>
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
 
 #include <lber.h>
 #include <lutil.h>
@@ -30,6 +33,6 @@ char* lutil_progname( const char* name, int argc, char *argv[] )
 #ifndef HAVE_MKSTEMP
 int mkstemp( char * template )
 {
-	return -1;
+	return open ( mktemp ( template ), O_RDWR|O_CREAT|O_EXCL, 0600 );
 }
 #endif