diff --git a/tools/debug_tools/crash_log_parser/crash_log_parser.py b/tools/debug_tools/crash_log_parser/crash_log_parser.py
index fcaaf81ffd..1114ffbb08 100644
--- a/tools/debug_tools/crash_log_parser/crash_log_parser.py
+++ b/tools/debug_tools/crash_log_parser/crash_log_parser.py
@@ -115,7 +115,7 @@ def parse_line_for_register(line):
 def main(crash_log, elfhelper):
     mmfar_val = 0
     bfar_val = 0
-    lines = iter(crash_log.readlines())
+    lines = iter(crash_log.read().splitlines())
     
     for eachline in lines:
         if "++ MbedOS Fault Handler ++" in eachline: