diff --git a/test/zdtm.py b/test/zdtm.py
index 000f590b0..c64fb2e49 100755
--- a/test/zdtm.py
+++ b/test/zdtm.py
@@ -1915,7 +1915,7 @@ def grep_errors(fname):
 			before.append(l)
 			if len(before) > 5:
 				before.pop(0)
-			if "Error" in l:
+			if "Error" in l or "Warn" in l:
 				if first:
 					print_fname(fname, 'log')
 					print_sep("grep Error", "-", 60)