diff --git a/autogen.sh b/autogen.sh
index 478718261..a6ab478d9 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -33,7 +33,7 @@ if test -z $AUTORECONF; then
         echo "*** No autoreconf found ***"
         exit 1
 else
-        autoreconf -v --install || exit $?
+        ACLOCAL="${ACLOCAL-aclocal} $ACLOCAL_FLAGS" autoreconf -v --install || exit $?
 fi
 
 ./configure "$@" && echo "Now type 'make' to compile $PROJECT."