diff --git a/src/cfgparse.c b/src/cfgparse.c
index bafd051..cd899b2 100644
--- a/src/cfgparse.c
+++ b/src/cfgparse.c
@@ -4578,6 +4578,20 @@ stats_error_parsing:
 				if (alertif_too_many_args_idx(1, 1, file, linenum, args, &err_code))
 					goto out;
 			}
+                        if (curproxy->conf.logformat_string && curproxy == &defproxy) {
+                                char *oldlogformat = "log-format";
+                                char *clflogformat = "";
+                                if (curproxy->conf.logformat_string == default_http_log_format)
+                                        oldlogformat = "option httplog";
+                                else if (curproxy->conf.logformat_string == default_tcp_log_format)
+                                        oldlogformat = "option tcplog";
+                                else if (curproxy->conf.logformat_string == clf_http_log_format)
+                                        oldlogformat = "option httplog clf";
+                                if (logformat == clf_http_log_format)
+                                        clflogformat = " clf";
+                                Warning("parsing [%s:%d]: 'option httplog%s' override previous '%s' in 'defaults' section.\n",
+                                        file, linenum, clflogformat, oldlogformat);
+                        }
 			if (curproxy->conf.logformat_string != default_http_log_format &&
 			    curproxy->conf.logformat_string != default_tcp_log_format &&
 			    curproxy->conf.logformat_string != clf_http_log_format)
@@ -4589,6 +4603,17 @@ stats_error_parsing:
 			curproxy->conf.lfs_line = curproxy->conf.args.line;
 		}
 		else if (!strcmp(args[1], "tcplog")) {
+                        if (curproxy->conf.logformat_string && curproxy == &defproxy) {
+                                char *oldlogformat = "log-format";
+                                if (curproxy->conf.logformat_string == default_http_log_format)
+                                        oldlogformat = "option httplog";
+                                else if (curproxy->conf.logformat_string == default_tcp_log_format)
+                                        oldlogformat = "option tcplog";
+                                else if (curproxy->conf.logformat_string == clf_http_log_format)
+                                        oldlogformat = "option httplog clf";
+                                Warning("parsing [%s:%d]: 'option tcplog' override previous '%s' in 'defaults' section.\n",
+                                        file, linenum, oldlogformat);
+                        }
 			/* generate a detailed TCP log */
 			if (curproxy->conf.logformat_string != default_http_log_format &&
 			    curproxy->conf.logformat_string != default_tcp_log_format &&
@@ -5833,6 +5858,17 @@ stats_error_parsing:
 			goto out;
 		}
 
+                if (curproxy->conf.logformat_string && curproxy == &defproxy) {
+                        char *oldlogformat = "log-format";
+                        if (curproxy->conf.logformat_string == default_http_log_format)
+                                oldlogformat = "option httplog";
+                        else if (curproxy->conf.logformat_string == default_tcp_log_format)
+                                oldlogformat = "option tcplog";
+                        else if (curproxy->conf.logformat_string == clf_http_log_format)
+                                oldlogformat = "option httplog clf";
+                        Warning("parsing [%s:%d]: 'log-format' override previous '%s' in 'defaults' section.\n",
+                                file, linenum, oldlogformat);
+                }
 		if (curproxy->conf.logformat_string != default_http_log_format &&
 		    curproxy->conf.logformat_string != default_tcp_log_format &&
 		    curproxy->conf.logformat_string != clf_http_log_format)