1 files changed, 2 insertions, 1 deletions
diff --git a/common.mk b/common.mk
index 4fdcae3fc7..c06f27596d 100644
--- a/common.mk
+++ b/common.mk
@@ -419,10 +419,11 @@ no-test-sample: PHONY
 yes-test-sample: PHONY
 	@$(RUNRUBY) $(srcdir)/tool/rubytest.rb
 
+test-knownbugs: test-knownbug
 test-knownbug: miniruby$(EXEEXT) $(PROGRAM) $(RBCONFIG) $(TEST_RUNNABLE)-test-knownbug
 no-test-knownbug: PHONY
 yes-test-knownbug: PHONY
-	$(RUNRUBY) "$(srcdir)/bootstraptest/runner.rb" --ruby="$(PROGRAM)" $(OPTS) $(srcdir)/KNOWNBUGS.rb
+	-$(RUNRUBY) "$(srcdir)/bootstraptest/runner.rb" --ruby="$(PROGRAM)" $(OPTS) $(srcdir)/KNOWNBUGS.rb
 
 test: test-sample btest-ruby test-knownbug