diff --git a/libs/libzrtp/projects/gnu/bootstrap.sh b/libs/libzrtp/projects/gnu/bootstrap.sh
index a19fe3c0cf..abc867ebf8 100755
--- a/libs/libzrtp/projects/gnu/bootstrap.sh
+++ b/libs/libzrtp/projects/gnu/bootstrap.sh
@@ -2,6 +2,7 @@
 
 reconf () {
   aclocal
+  mkdir -p config
   libtoolize --copy --automake
   autoconf
   autoheader