diff --git a/configuration/configure.ac b/configuration/configure.ac
index f951721..0eb3933 100644
--- a/configuration/configure.ac
+++ b/configuration/configure.ac
@@ -50,6 +50,7 @@
 AC_PATH_PROG(MV, mv)
 AC_PATH_PROG(CP, cp)
 AC_PATH_PROG(RM, rm)
+AC_PATH_PROG(RSYNC, rsync)
 AC_PATH_PROG(TOUCH, touch)
 AC_PROG_LN_S