diff --git a/configure.in b/configure.in
index 8f6f425ee8..008c2f20c9 100644
--- a/configure.in
+++ b/configure.in
@@ -169,7 +169,7 @@ AC_TRY_COMPILE([#ifndef __user
                [ac_have_iwevgenie=no])
 AC_MSG_RESULT($ac_have_iwevgenie)
 if test "$ac_have_iwevgenie" = no; then
-	AC_MSG_ERROR(wireless-tools >= 28pre9 not installed or not functional)
+	AC_MSG_ERROR(wireless-tools library and development headers >= 28pre9 not installed or not functional)
 fi
 
 PKG_CHECK_MODULES(DBUS, dbus-glib-1 >= 0.75)