diff --git a/autogen.sh b/autogen.sh
index 18e3c7c21a..bb024eb2bb 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -32,7 +32,7 @@ version_check "autoconf" "$AUTOCONF autoconf autoconf-2.54 autoconf-2.53 autocon
               "ftp://ftp.gnu.org/pub/gnu/autoconf/" 2 52 || DIE=1
 version_check "automake" "$AUTOMAKE automake automake-1.7 automake-1.6 automake-1.5" \
               "ftp://ftp.gnu.org/pub/gnu/automake/" 1 5 || DIE=1
-version_check "libtoolize" "libtoolize libtoolize14" \
+version_check "libtoolize" "$LIBTOOLIZE libtoolize libtoolize14" \
               "ftp://ftp.gnu.org/pub/gnu/libtool/" 1 4 0 || DIE=1
 version_check "pkg-config" "" \
               "http://www.freedesktop.org/software/pkgconfig" 0 8 0 || DIE=1