diff --git a/src/amf/context.c b/src/amf/context.c
index 6b0f6968f..cdf12fb07 100644
--- a/src/amf/context.c
+++ b/src/amf/context.c
@@ -797,6 +797,7 @@ int amf_context_parse_config(void)
                             }
                             network_full_name->length = size*2+1;
                             network_full_name->coding_scheme = 1;
+                            network_full_name->ext = 1;
                         } else if (!strcmp(network_name_key, "short")) {
                             ogs_nas_network_name_t *network_short_name =
                                 &self.short_name;
@@ -813,6 +814,7 @@ int amf_context_parse_config(void)
                             }
                             network_short_name->length = size*2+1;
                             network_short_name->coding_scheme = 1;
+                            network_short_name->ext = 1;
                         }
                     }
                 } else if (!strcmp(amf_key, "amf_name")) {
diff --git a/src/mme/mme-context.c b/src/mme/mme-context.c
index a37162a62..2d0f33a23 100644
--- a/src/mme/mme-context.c
+++ b/src/mme/mme-context.c
@@ -946,6 +946,7 @@ int mme_context_parse_config()
                             }
                             network_full_name->length = size*2+1;
                             network_full_name->coding_scheme = 1;
+                            network_full_name->ext = 1;
                         } else if (!strcmp(network_name_key, "short")) {
                             ogs_nas_network_name_t *network_short_name =
                                 &self.short_name;
@@ -962,6 +963,7 @@ int mme_context_parse_config()
                             }
                             network_short_name->length = size*2+1;
                             network_short_name->coding_scheme = 1;
+                            network_short_name->ext = 1;
                         }
                     }
                 } else if (!strcmp(mme_key, "sgsap")) {