diff --git a/poky/scripts/lib/resulttool/resultutils.py b/poky/scripts/lib/resulttool/resultutils.py
index 177fb25..7cb85a6 100644
--- a/poky/scripts/lib/resulttool/resultutils.py
+++ b/poky/scripts/lib/resulttool/resultutils.py
@@ -126,7 +126,11 @@
         if "compressed" in logdata:
             data = logdata.get("compressed")
             data = base64.b64decode(data.encode("utf-8"))
-            return zlib.decompress(data).decode("utf-8")
+            data = zlib.decompress(data)
+            try:
+                return data.decode("utf-8")
+            except UnicodeDecodeError:
+                return data
     return None
 
 def ptestresult_get_log(results, section):