diff --git a/Makefile.in b/Makefile.in
index 7a25fe74e0..51c7d62e96 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -533,6 +533,7 @@ cont.$(OBJEXT): $(COROUTINE_H)
 TEST_BUNDLED_GEMS_ALLOW_FAILURES =
 
 test-bundled-gems-run:
+	$(ECHO) allow_failures: $(TEST_BUNDLED_GEMS_ALLOW_FAILURES)
 	$(Q) set -e; while read gem _; do \
 	  echo testing $$gem gem; \
 	  if echo $(TEST_BUNDLED_GEMS_ALLOW_FAILURES) | grep -q $$gem; then \
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index a4bae3d17f..a2a56af824 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -7,8 +7,7 @@ jobs:
     matrix:
       bundled_gems:
         task: test-bundled-gems
-        TEST_BUNDLED_GEMS_ALLOW_FAILURES: |
-          minitest
+        TEST_BUNDLED_GEMS_ALLOW_FAILURES: minitest
       bundler:
         task: test-bundler
   steps:
@@ -44,8 +43,7 @@ jobs:
 #        task: test-spec
       bundled_gems:
         task: test-bundled-gems
-        TEST_BUNDLED_GEMS_ALLOW_FAILURES: |
-          minitest
+        TEST_BUNDLED_GEMS_ALLOW_FAILURES: minitest
       bundler:
         task: test-bundler
   steps: