diff --git a/tests/blackbox-segfault.sh b/tests/blackbox-segfault.sh
index 0e1c47c64..3009c6eda 100755
--- a/tests/blackbox-segfault.sh
+++ b/tests/blackbox-segfault.sh
@@ -3,6 +3,7 @@
 # create a normal blackbox
 rm -f crash-test-dummy.fdata
 ./crash_test_dummy
+rm -f core*
 
 . ./test.conf