diff --git a/tests/gold_tests/pluginTest/regex_revalidate/regex_revalidate.test.py b/tests/gold_tests/pluginTest/regex_revalidate/regex_revalidate.test.py
index cd3b581ba08..73e4b50107b 100644
--- a/tests/gold_tests/pluginTest/regex_revalidate/regex_revalidate.test.py
+++ b/tests/gold_tests/pluginTest/regex_revalidate/regex_revalidate.test.py
@@ -147,7 +147,7 @@
 # minimal configuration
 ts.Disk.records_config.update({
     'proxy.config.diags.debug.enabled': 1,
-    'proxy.config.diags.debug.tags': 'regex_revalidate',
+    'proxy.config.diags.debug.tags': 'http|regex_revalidate',
     #    'proxy.config.diags.debug.enabled': 0,
     'proxy.config.http.insert_age_in_response': 0,
     'proxy.config.http.response_via_str': 3,
@@ -185,6 +185,10 @@
 
 # 4 Stage - Reload new regex_revalidate
 tr = Test.AddTestRun("Reload config add path1")
+# Need a sufficient delay so that the modification time difference of the new config file versus
+# the old is greater than the granularity of the time stamp used.  (The config file write
+# happens after the delay.)
+tr.DelayStart = 1
 tr.Disk.File(regex_revalidate_conf_path, typename="ats:config").AddLines([
     path1_rule
 ])
@@ -214,6 +218,10 @@
 
 # 7 Stage - Reload new regex_revalidate
 tr = Test.AddTestRun("Reload config add path2")
+# Need a sufficient delay so that the modification time difference of the new config file versus
+# the old is greater than the granularity of the time stamp used.  (The config file write
+# happens after the delay.)
+tr.DelayStart = 1
 tr.Disk.File(regex_revalidate_conf_path, typename="ats:config").AddLines([
     path1_rule,
     'path2 {}\n'.format(int(time.time()) + 700)
@@ -247,6 +255,10 @@
 
 # 10 Stage - regex_revalidate rewrite rule early expire
 tr = Test.AddTestRun("Reload config change path2")
+# Need a sufficient delay so that the modification time difference of the new config file versus
+# the old is greater than the granularity of the time stamp used.  (The config file write
+# happens after the delay.)
+tr.DelayStart = 1
 tr.Disk.File(regex_revalidate_conf_path, typename="ats:config").AddLines([
     path1_rule,
     'path2 {}\n'.format(int(time.time()) - 100),