diff --git a/lib/asn/src/s1ap_decoder.c b/lib/asn/src/s1ap_decoder.c
index fbe6eb1a6..a60103be0 100644
--- a/lib/asn/src/s1ap_decoder.c
+++ b/lib/asn/src/s1ap_decoder.c
@@ -213,7 +213,6 @@ static void s1ap_decode_xer_print_message(
     {
         char *message_string = core_calloc(HUGE_STRING_LEN, sizeof(c_uint8_t));
         s1ap_string_total_size = 0;
-        memset(message_string, 0, HUGE_STRING_LEN);
 
         func(cb, message_string, message_p);
 
diff --git a/lib/asn/src/s1ap_encoder.c b/lib/asn/src/s1ap_encoder.c
index c6d83ddba..411f5c2d7 100644
--- a/lib/asn/src/s1ap_encoder.c
+++ b/lib/asn/src/s1ap_encoder.c
@@ -392,11 +392,12 @@ static void s1ap_encode_xer_print_message(
     {
         char *message_string = core_calloc(HUGE_STRING_LEN, sizeof(c_uint8_t));
         s1ap_string_total_size = 0;
-        memset(message_string, 0, HUGE_STRING_LEN);
 
         func(cb, message_string, message_p);
 
         printf("%s\n", message_string);
+
+        core_free(message_string);
     }
 }