diff --git a/config.h.in b/config.h.in
index 2c105e26e..20f8372f4 100644
--- a/config.h.in
+++ b/config.h.in
@@ -476,6 +476,9 @@
 /* Define if you use S/Key.  */
 #undef HAVE_SKEY
 
+/* Define if you have skeyaccess(3).  */
+#undef HAVE_SKEYACCESS
+
 /* Define if you use NRL OPIE.  */
 #undef HAVE_OPIE
 
diff --git a/configure.in b/configure.in
index 1cb4fad05..32f9ab889 100644
--- a/configure.in
+++ b/configure.in
@@ -1752,6 +1752,7 @@ if test "$with_skey" = "yes"; then
     else
 	echo 'Unable to locate libskey.a and/or skey.h, you will have to edit the Makefile and add -L/path/to/skey/lib to SUDO_LDFLAGS and/or -I/path/to/skey.h to CPPFLAGS'
     fi
+    AC_CHECK_LIB(skey, skeyaccess, AC_DEFINE(HAVE_SKEYACCESS))
 fi
 
 dnl