diff --git a/systemtap-static-probes-in-ruby/runtest.sh b/systemtap-static-probes-in-ruby/runtest.sh
index 7743895..d44d2b0 100755
--- a/systemtap-static-probes-in-ruby/runtest.sh
+++ b/systemtap-static-probes-in-ruby/runtest.sh
@@ -91,7 +91,7 @@ rlJournalStart
         rlRun "$RUBY $RUBY_OPTS -e '1.0 + 9.0'" 0 "Running ruby interpreter: Float test"
         rlRun "$RUBY $RUBY_OPTS -e '[1, 2, 3].push(4)'" 0 "Running ruby interpreter: Array test"
         rlRun "$RUBY $RUBY_OPTS -e '(1..10).step(1)'" 0 "Running ruby interpreter: Range test"
-        rlRun "$RUBY $RUBY_OPTS -e 'Hash.new()'" 0 "Running ruby interpreter: Hash test"
+        rlRun "$RUBY $RUBY_OPTS -e 'TracePoint.new{}.enable; Hash.new()'" 0 "Running ruby interpreter: Hash test"
         rlRun "$RUBY $RUBY_OPTS -e '\"abc\".slice!(\"c\")'" 0 "Running ruby interpreter: String test"
         rlRun "$RUBY $RUBY_OPTS -e 'TracePoint.new{}.enable; 5.times { printf \"Ruby!\n\" }'" 0 "Running ruby interpreter: Cycle and print test"