diff --git a/epan/dissectors/packet-sua.c b/epan/dissectors/packet-sua.c
index d5772040dc..8d6868853b 100644
--- a/epan/dissectors/packet-sua.c
+++ b/epan/dissectors/packet-sua.c
@@ -404,7 +404,7 @@ dissect_info_string_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tre
   info_string_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
   proto_tree_add_item(parameter_tree, hf_info_string, parameter_tvb, INFO_STRING_OFFSET, info_string_length, ENC_BIG_ENDIAN);
   proto_item_append_text(parameter_item, " (%.*s)", info_string_length,
-                         (const char *)tvb_get_ptr(parameter_tvb, INFO_STRING_OFFSET, info_string_length));
+                         tvb_get_ephemeral_string(parameter_tvb, INFO_STRING_OFFSET, info_string_length));
 }
 
 #define ROUTING_CONTEXT_LENGTH 4
@@ -1317,7 +1317,7 @@ dissect_hostname_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree,
   hostname_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
   proto_tree_add_item(parameter_tree, hf_hostname, parameter_tvb, HOSTNAME_OFFSET, hostname_length, ENC_BIG_ENDIAN);
   proto_item_append_text(parameter_item, " (%.*s)", hostname_length,
-                         (const char *)tvb_get_ptr(parameter_tvb, HOSTNAME_OFFSET, hostname_length));
+                         tvb_get_ephemeral_string(parameter_tvb, HOSTNAME_OFFSET, hostname_length));
 }
 
 #define IPV6_ADDRESS_LENGTH 16