diff --git a/autogen.sh b/autogen.sh
index 5ad9f14..b792e8b 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,4 +1,5 @@
 #! /bin/sh
 set -x -e
+mkdir -p m4
 # --no-recursive is available only in recent autoconf versions
 autoreconf -fv --install