diff --git a/vendor_hex_core.sh b/vendor_hex_core.sh
new file mode 100755
index 000000000..d95261b9e
--- /dev/null
+++ b/vendor_hex_core.sh
@@ -0,0 +1,66 @@
+#!/bin/bash
+set -e
+
+if [[ -z "$1" ]]; then
+  echo "Usage: vendor_hex_core.sh PATH_TO_HEX_CORE"
+  exit 1
+fi
+
+source_dir=$1/src
+target_dir=src
+prefix=r3_
+hex_core_version=`cat $source_dir/hex_core.hrl | grep HEX_CORE_VERSION | cut -d'"' -f2`
+
+filenames="hex_core.hrl \
+           hex_core.erl \
+           hex_erl_tar.erl \
+           hex_erl_tar.hrl \
+           hex_filename.erl \
+           hex_pb_names.erl \
+           hex_pb_package.erl \
+           hex_pb_signed.erl \
+           hex_pb_versions.erl \
+           hex_tarball.erl \
+           hex_registry.erl \
+           hex_http_httpc.erl \
+           hex_http.erl \
+           hex_repo.erl \
+           hex_api.erl \
+           hex_api_key.erl \
+           hex_api_package.erl \
+           hex_api_package_owner.erl \
+           hex_api_release.erl \
+           hex_api_user.erl \
+           safe_erl_term.xrl"
+
+search_to_replace="hex_core: \
+                   hex_core) \
+                   hex_core.hrl \
+                   hex_erl_tar \
+                   hex_filename \
+                   hex_pb_names \
+                   hex_pb_package \
+                   hex_pb_signed \
+                   hex_pb_versions \
+                   hex_registry \
+                   hex_tarball \
+                   hex_http \
+                   hex_repo \
+                   hex_api \
+                   safe_erl_term"
+
+rm -f $target_dir/$prefix*
+
+for filename in $filenames; do
+  source_path=$source_dir/$filename
+  target_path=$target_dir/$prefix$filename
+
+  echo "%% Vendored from hex_core v$hex_core_version, do not edit manually" > $target_path
+  echo >> $target_path
+  cat $source_path >> $target_path
+
+  for word in $search_to_replace; do
+    sed -i.bak s/$word/$prefix$word/g $target_path
+    rm $target_path.bak
+  done
+done