diff --git a/tests/tools/config.tools b/tests/tools/config.tools
index 6fcadcbf3f2c..9d94f861a2a7 100644
--- a/tests/tools/config.tools
+++ b/tests/tools/config.tools
@@ -306,7 +306,7 @@ errors:something strange happend{REPLACE something strange happened}
 errors:LinAlgWarning: Ill-conditioned matrix
 errors:= opt.linprog(
 errors:return sp.linalg.solve
-errors:usage: {->}error:
+errors:usage: {[->}error:
 omnet:<!-- generated on
 shawn:<!-- generated on
 gpsdat:r[0-9]
diff --git a/tests/tools/sumolib/statistics/output.tools b/tests/tools/sumolib/statistics/output.tools
index 1c7234134e15..c655539d5106 100644
--- a/tests/tools/sumolib/statistics/output.tools
+++ b/tests/tools/sumolib/statistics/output.tools
@@ -11,7 +11,7 @@
 4
 3.25
 3.25
-(3.25, 3.897114317029974)
+mean: 3.250, standard deviation: 3.897
 1.1991120975476843
 1
 1
diff --git a/tests/tools/sumolib/statistics/runner.py b/tests/tools/sumolib/statistics/runner.py
index 4316dd698278..0463bcf5837d 100755
--- a/tests/tools/sumolib/statistics/runner.py
+++ b/tests/tools/sumolib/statistics/runner.py
@@ -54,7 +54,7 @@
 print(s.count())
 print(s.avg())
 print(s.avg_abs())
-print(s.meanAndStdDev())
+print("mean: %.3f, standard deviation: %.3f" % s.meanAndStdDev())
 print(s.relStdDev())
 print(s.mean())
 print(s.mean_abs())