diff --git a/bin/apply_flow_diff.sh b/bin/apply_flow_diff.sh
new file mode 100755
index 00000000..5f06e7e2
--- /dev/null
+++ b/bin/apply_flow_diff.sh
@@ -0,0 +1,45 @@
+#!/bin/bash
+die()
+{
+  echo "ERROR: $1" >&2
+  exit "${2:-1}"
+}
+
+log_info()
+{
+  echo "INFO: $*"
+}
+BASE_DIR="${BASE_DIR:-/usr/share/kamailio-config-tests}"
+GROUP="${GROUP:-scenarios}"
+
+usage() {
+  echo "Usage: apply_flow_diff.sh [-x <group>] <scenario>"
+  echo "Options:"
+  echo -e "\t-x set GROUP scenario. Default: scenarios"
+  echo -e "\t-h this help"
+}
+
+while getopts 'hx' opt; do
+  case $opt in
+    h) usage; exit 0;;
+    x) GROUP=${OPTARG};;
+    *) usage; exit 1;;
+  esac
+done
+shift $((OPTIND - 1))
+
+if [[ $# -ne 1 ]]; then
+  echo "Wrong number or arguments"
+  usage
+  exit 1
+fi
+
+SCEN="$1"
+RESULT_DIR=${BASE_DIR}/result/${GROUP}/${SCEN}
+TEST_DIR=${BASE_DIR}/${GROUP}/${SCEN}
+
+cd "${TEST_DIR}" || die "${TEST_DIR} not found"
+find "${RESULT_DIR}" -name '0*_test.diff' | sort -r | while read -r dfile ; do
+	tfile=$(basename "${dfile}" .diff).yml.tt2
+	patch -p1 "${tfile}" "${dfile}"
+done
\ No newline at end of file