diff --git a/tools/elf_mem_map b/tools/elf_mem_map
index df3fc0f5b..7e40f4f99 100755
--- a/tools/elf_mem_map
+++ b/tools/elf_mem_map
@@ -5,6 +5,7 @@ import elftools.dwarf.descriptions
 from collections import namedtuple
 from struct import unpack
 import os
+import re
 
 from lib.dump import decode_dump
 from lib.avr import *