diff --git a/meta/recipes-rt/rt-tests/files/rt_bmark.py b/meta/recipes-rt/rt-tests/files/rt_bmark.py
index 2a4eed412f..5d22623656 100755
--- a/meta/recipes-rt/rt-tests/files/rt_bmark.py
+++ b/meta/recipes-rt/rt-tests/files/rt_bmark.py
@@ -284,7 +284,7 @@ def run_cyclictest_once():
         avg_cnt = 0
 
         for line in res.splitlines():
-                m = rex.search(line)
+                m = rex.search(line.decode('utf-8'))
                 if m is not None:
                         minlist.append(int(m.group(2)))
                         maxlist.append(int(m.group(4)))