diff --git a/tests/Makefile.script-test b/tests/Makefile.script-test
index a14523fe4..26d60737f 100644
--- a/tests/Makefile.script-test
+++ b/tests/Makefile.script-test
@@ -1,5 +1,5 @@
 TESTS=$(wildcard ??-*.sh)
-TESTLOGS=$(patsubst %.sh,%.testlog,$(TESTS))
+TESTLOGS=$(sort $(patsubst %.sh,%.testlog,$(TESTS)))
 
 CONTIKI=../..