diff --git a/samples/subsys/logging/syst/src/main.c b/samples/subsys/logging/syst/src/main.c
index c0ae6a4ac61..5c195512976 100644
--- a/samples/subsys/logging/syst/src/main.c
+++ b/samples/subsys/logging/syst/src/main.c
@@ -46,6 +46,7 @@ void log_msgs(void)
 
 	char c = '!';
 	char *s = "static str";
+	char *s1 = "c str";
 	char vs0[32];
 	char vs1[32];
 
@@ -67,7 +68,7 @@ void log_msgs(void)
 	snprintk(&vs1[0], sizeof(vs1), "%s", "another dynamic str");
 
 	LOG_DBG("char %c", c);
-	LOG_DBG("s str %s", s);
+	LOG_DBG("s str %s %s", s, s1);
 
 #ifdef CONFIG_LOG1
 	LOG_DBG("d str %s", log_strdup(vs0));