diff --git a/tests/blackbox-segfault.sh b/tests/blackbox-segfault.sh
index eebfafc..0e1c47c 100755
--- a/tests/blackbox-segfault.sh
+++ b/tests/blackbox-segfault.sh
@@ -6,6 +6,14 @@ rm -f crash-test-dummy.fdata
 
 . ./test.conf
 
+# first test that reading the valid
+# blackbox data actually works.
+../tools/qb-blackbox crash-test-dummy.fdata
+if [ $? -ne 0 ]; then
+	exit 1
+fi
+
+
 for i in $(seq $NUM_BB_TESTS)
 do
     rm -f butchered_blackbox.fdata