diff --git a/configure.in b/configure.in
index 916b941a3..8857f2559 100644
--- a/configure.in
+++ b/configure.in
@@ -1035,7 +1035,7 @@ if test x$xcbc = xtrue; then
 fi
 if test x$hmac = xtrue; then
 	libstrongswan_plugins=${libstrongswan_plugins}" hmac"
-        pluto_plugins=${pluto_plugins}" hmac"
+	pluto_plugins=${pluto_plugins}" hmac"
 fi
 if test x$mysql = xtrue; then
 	libstrongswan_plugins=${libstrongswan_plugins}" mysql"
@@ -1048,6 +1048,7 @@ if test x$padlock = xtrue; then
 fi
 if test x$openssl = xtrue; then
 	libstrongswan_plugins=${libstrongswan_plugins}" openssl"
+	pluto_plugins=${pluto_plugins}" hmac"
 fi
 if test x$agent = xtrue; then
 	libstrongswan_plugins=${libstrongswan_plugins}" agent"