diff --git a/configure.in b/configure.in
index 05671ba34..ec54dddd0 100644
--- a/configure.in
+++ b/configure.in
@@ -164,6 +164,8 @@ AC_SUBST(LIB_kdb)dnl
 
 KRB_CRYPTO
 
+KRB_PTHREADS
+
 AC_ARG_ENABLE(dce, 
 	AC_HELP_STRING([--enable-dce],[if you want support for DCE/DFS PAG's]))
 if test "$enable_dce" = yes; then