diff --git a/libs/libzrtp/projects/gnu/bootstrap.sh b/libs/libzrtp/projects/gnu/bootstrap.sh
index df9bb21e30..1559388ad1 100755
--- a/libs/libzrtp/projects/gnu/bootstrap.sh
+++ b/libs/libzrtp/projects/gnu/bootstrap.sh
@@ -9,6 +9,6 @@ reconf () {
   automake --no-force --add-missing --copy
 }
 
-(cd ../../third_party/bnlib && reconf)
+(cd ../../third_party/bnlib && ./bootstrap.sh)
 reconf
 
diff --git a/libs/libzrtp/third_party/bnlib/bootstrap.sh b/libs/libzrtp/third_party/bnlib/bootstrap.sh
new file mode 100755
index 0000000000..93030be3f6
--- /dev/null
+++ b/libs/libzrtp/third_party/bnlib/bootstrap.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+aclocal
+autoconf
+