diff --git a/src/rds.c b/src/rds.c
index 6c02d0d..d062493 100644
--- a/src/rds.c
+++ b/src/rds.c
@@ -473,8 +473,6 @@ void set_rds_rt1_enabled(uint8_t rt1en) {
 void set_rds_rt1(unsigned char *rt1) {
 	uint8_t i = 0, len = 0;
 
-	rds_state.rt_update = 1;
-
 	if(rt1[0] == '\0') {
 		rds_state.rt1_enabled = 0;
 		return;
@@ -482,6 +480,8 @@ void set_rds_rt1(unsigned char *rt1) {
 		rds_state.rt1_enabled = 1;
 	}
 
+	rds_state.rt_update = 1;
+
 	memset(rds_data.rt1, ' ', RT_LENGTH);
 	while (*rt1 != 0 && len < RT_LENGTH)
 		rds_data.rt1[len++] = *rt1++;