diff --git a/src/cfgparse-listen.c b/src/cfgparse-listen.c
index e5945d8e2..60f20ecd2 100644
--- a/src/cfgparse-listen.c
+++ b/src/cfgparse-listen.c
@@ -318,6 +318,19 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
 				   curproxy->id, curproxy->conf.file, curproxy->conf.line);
 			err_code |= ERR_WARN;
 		}
+		else if (rc & PR_CAP_DEF) {
+			/* only defaults need to be checked here, other proxies
+			 * have already been above.
+			 */
+			curproxy = log_forward_by_name(args[1]);
+			if (curproxy) {
+				ha_warning("Parsing [%s:%d]: %s '%s' has the same name as log-forward section '%s' declared at %s:%d."
+					   " This is dangerous and will not be supported anymore in version 3.3.\n",
+					   file, linenum, proxy_cap_str(rc), args[1],
+					   curproxy->id, curproxy->conf.file, curproxy->conf.line);
+				err_code |= ERR_WARN;
+			}
+		}
 
 		if (rc & PR_CAP_DEF && strcmp(args[1], "from") == 0 && *args[2] && !*args[3]) {
 			// also support "defaults from blah" (no name then)
diff --git a/src/log.c b/src/log.c
index 993fe08e8..8b6e9b61f 100644
--- a/src/log.c
+++ b/src/log.c
@@ -5867,6 +5867,16 @@ int cfg_parse_log_forward(const char *file, int linenum, char **args, int kwm)
 			goto out;
 		}
 
+		px = proxy_find_by_name(args[1], PR_CAP_DEF, 0);
+		if (px) {
+			/* collision with a "defaults" section */
+			ha_warning("Parsing [%s:%d]: log-forward section '%s' has the same name as %s '%s' declared at %s:%d."
+				   " This is dangerous and will not be supported anymore in version 3.3.\n",
+				   file, linenum, args[1], proxy_type_str(px),
+				   px->id, px->conf.file, px->conf.line);
+			err_code |= ERR_WARN;
+		}
+
 		px = calloc(1, sizeof *px);
 		if (!px) {
 			err_code |= ERR_ALERT | ERR_FATAL;