diff --git a/tests/test-hghave.t b/tests/test-hghave.t
index d4d2c567bb721633acc1d96db89cc46978381c9b_dGVzdHMvdGVzdC1oZ2hhdmUudA==..c3970be8decaab37da04ac907d181b933d239060_dGVzdHMvdGVzdC1oZ2hhdmUudA== 100644
--- a/tests/test-hghave.t
+++ b/tests/test-hghave.t
@@ -22,5 +22,6 @@
   > EOF
   $ ( \
   > testrepohgenv; \
-  > "$PYTHON" $TESTDIR/run-tests.py $HGTEST_RUN_TESTS_PURE test-hghaveaddon.t \
+  > "$PYTHON" $TESTDIR/run-tests.py -j 1 \
+  >    $HGTEST_RUN_TESTS_PURE test-hghaveaddon.t \
   > )
@@ -26,4 +27,5 @@
   > )
+  running 1 tests using 1 parallel processes 
   .
   # Ran 1 tests, 0 skipped, 0 failed.