diff --git a/ChangeLog b/ChangeLog
index 6a1df393..d16c6e24 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2017-12-29  Joerg Wunsch <j.gnu@uriah.heep.sax.de>
+
+	* bootstrap: Detect whether libtoolize is named
+	`glibtoolize' (MacOS)
+
 2017-11-30  Joerg Wunsch <j.gnu@uriah.heep.sax.de>
 
 	* configure.ac: Bump version date, due to UPDI addition
diff --git a/bootstrap b/bootstrap
index 0c1f84cc..207dc4c2 100755
--- a/bootstrap
+++ b/bootstrap
@@ -13,7 +13,11 @@ set -x
 
 rm -rf autom4te.cache
 
-libtoolize
+# MacOS calls it "glibtoolize", everyone else "libtoolize"
+# probe for that
+LIBTOOLIZE=libtoolize
+glibtoolize --version > /dev/null 2>&1 && LIBTOOLIZE=glibtoolize
+${LIBTOOLIZE}
 
 ${ACLOCAL}
 ${AUTOHEADER}