diff --git a/proxy/IPAllow.cc b/proxy/IPAllow.cc
index 9f0976d4b11..c2e0fb6bfd1 100644
--- a/proxy/IPAllow.cc
+++ b/proxy/IPAllow.cc
@@ -248,15 +248,15 @@ IpAllow::PrintMap(const IpMap *map) const
       }
     }
   }
-  Debug("ip-allow", "%s", s.str().c_str());
+  Debug("ip_allow", "%s", s.str().c_str());
 }
 
 void
 IpAllow::Print() const
 {
-  Debug("ip-allow", "Printing src map");
+  Debug("ip_allow", "Printing src map");
   PrintMap(&_src_map);
-  Debug("ip-allow", "Printing dest map");
+  Debug("ip_allow", "Printing dest map");
   PrintMap(&_dst_map);
 }
 
@@ -293,7 +293,7 @@ IpAllow::BuildTable()
     for (auto &item : _dst_map) {
       item.setData(&_dst_acls[reinterpret_cast<size_t>(item.data())]);
     }
-    if (is_debug_tag_set("ip-allow")) {
+    if (is_debug_tag_set("ip_allow")) {
       Print();
     }
   } else {
@@ -314,7 +314,7 @@ IpAllow::YAMLLoadMethod(const YAML::Node &node, Record &rec)
     int method_idx = hdrtoken_tokenize(value.data(), value.size());
     if (method_idx < HTTP_WKSIDX_CONNECT || method_idx >= HTTP_WKSIDX_CONNECT + HTTP_WKSIDX_METHODS_CNT) {
       rec._nonstandard_methods.push_back(value);
-      Debug("ip-allow", "Found nonstandard method '%s' at line %d", value.c_str(), node.Mark().line);
+      Debug("ip_allow", "Found nonstandard method '%s' at line %d", value.c_str(), node.Mark().line);
     } else { // valid method.
       rec._method_mask |= ACL::MethodIdxToMask(method_idx);
     }
@@ -548,7 +548,7 @@ IpAllow::ATSBuildTable(std::string const &content)
                 int method_idx = hdrtoken_tokenize(method_name.data(), method_name.size());
                 if (method_idx < HTTP_WKSIDX_CONNECT || method_idx >= HTTP_WKSIDX_CONNECT + HTTP_WKSIDX_METHODS_CNT) {
                   nonstandard_methods.emplace_back(std::string(method_name.data(), method_name.size()));
-                  Debug("ip-allow", "%s",
+                  Debug("ip_allow", "%s",
                         bw_err.reset().print("Found nonstandard method '{}' on line {}\0", method_name, line_num).data());
                 } else { // valid method.
                   acl_method_mask |= ACL::MethodIdxToMask(method_idx);
diff --git a/proxy/http/HttpSM.cc b/proxy/http/HttpSM.cc
index 27b91e265f0..bc7137fb47f 100644
--- a/proxy/http/HttpSM.cc
+++ b/proxy/http/HttpSM.cc
@@ -5073,7 +5073,7 @@ HttpSM::do_http_server_open(bool raw)
     }
 
     if (deny_request) {
-      if (is_debug_tag_set("ip-allow")) {
+      if (is_debug_tag_set("ip_allow")) {
         ip_text_buffer ipb;
         if (method != -1) {
           method_str     = hdrtoken_index_to_wks(method);
@@ -5083,7 +5083,7 @@ HttpSM::do_http_server_open(bool raw)
         }
         Warning("server '%s' prohibited by ip-allow policy at line %d", ats_ip_ntop(server_ip, ipb, sizeof(ipb)),
                 acl.source_line());
-        SMDebug("ip-allow", "Line %d denial for '%.*s' from %s", acl.source_line(), method_str_len, method_str,
+        SMDebug("ip_allow", "Line %d denial for '%.*s' from %s", acl.source_line(), method_str_len, method_str,
                 ats_ip_ntop(server_ip, ipb, sizeof(ipb)));
       }
       t_state.current.attempts = t_state.txn_conf->connect_attempts_max_retries; // prevent any more retries with this IP
diff --git a/proxy/http/HttpTransact.cc b/proxy/http/HttpTransact.cc
index 65fead8854c..8618cbdc6a0 100644
--- a/proxy/http/HttpTransact.cc
+++ b/proxy/http/HttpTransact.cc
@@ -6611,7 +6611,7 @@ HttpTransact::process_quick_http_filter(State *s, int method)
       }
     }
     if (deny_request) {
-      if (is_debug_tag_set("ip-allow")) {
+      if (is_debug_tag_set("ip_allow")) {
         ip_text_buffer ipb;
         if (method != -1) {
           method_str     = hdrtoken_index_to_wks(method);
@@ -6619,7 +6619,7 @@ HttpTransact::process_quick_http_filter(State *s, int method)
         } else if (!method_str) {
           method_str = s->hdr_info.client_request.method_get(&method_str_len);
         }
-        TxnDebug("ip-allow", "Line %d denial for '%.*s' from %s", acl.source_line(), method_str_len, method_str,
+        TxnDebug("ip_allow", "Line %d denial for '%.*s' from %s", acl.source_line(), method_str_len, method_str,
                  ats_ip_ntop(&s->client_info.src_addr.sa, ipb, sizeof(ipb)));
       }
       s->client_connection_enabled = false;
diff --git a/tests/gold_tests/ip_allow/ip_allow.test.py b/tests/gold_tests/ip_allow/ip_allow.test.py
index f6504cbe5f2..5eb79396ccd 100644
--- a/tests/gold_tests/ip_allow/ip_allow.test.py
+++ b/tests/gold_tests/ip_allow/ip_allow.test.py
@@ -85,7 +85,7 @@
 
 ts.Disk.records_config.update({
     'proxy.config.diags.debug.enabled': 1,
-    'proxy.config.diags.debug.tags': 'ip-allow',
+    'proxy.config.diags.debug.tags': 'ip_allow',
     'proxy.config.http.connect_ports': '{0}'.format(server.Variables.SSL_Port),
     'proxy.config.ssl.server.cert.path': '{0}'.format(ts.Variables.SSLDir),
     'proxy.config.ssl.server.private_key.path': '{0}'.format(ts.Variables.SSLDir),