diff --git a/src/config/parse_config.h b/src/config/parse_config.h
index d28f92c..2079309 100644
--- a/src/config/parse_config.h
+++ b/src/config/parse_config.h
@@ -2623,6 +2623,7 @@ void reload_config(const Arg *arg) {
 				!rule_monitor_name) {
 				for (jk = 0; jk < LENGTH(layouts); jk++) {
 					if (config.tag_rules_count > 0 &&
+						config.tag_rules[i - 1].layout_name &&
 						strcmp(layouts[jk].name,
 							   config.tag_rules[i - 1].layout_name) == 0) {
 						m->pertag->ltidxs[config.tag_rules[i - 1].id] =
diff --git a/src/maomao.c b/src/maomao.c
index 1156338..4bfa2b8 100644
--- a/src/maomao.c
+++ b/src/maomao.c
@@ -2508,6 +2508,7 @@ void createmon(struct wl_listener *listener, void *data) {
 	for (i = 1; i <= config.tag_rules_count; i++) {
 		for (jk = 0; jk < LENGTH(layouts); jk++) {
 			if (config.tag_rules_count > 0 &&
+				config.tag_rules[i - 1].layout_name &&
 				strcmp(layouts[jk].name, config.tag_rules[i - 1].layout_name) ==
 					0) {
 				m->pertag->ltidxs[config.tag_rules[i - 1].id] = &layouts[jk];