diff --git a/src/gsm/gsup.c b/src/gsm/gsup.c
index 2629eb7..685c91f 100644
--- a/src/gsm/gsup.c
+++ b/src/gsm/gsup.c
@@ -103,6 +103,11 @@
 			pdp_info->qos_enc_len = value_len;
 			break;
 
+		case OSMO_GSUP_CHARG_CHAR_IE:
+			pdp_info->pdp_charg_enc = value;
+			pdp_info->pdp_charg_enc_len = value_len;
+			break;
+
 		default:
 			LOGP(DLGSUP, LOGL_ERROR,
 			     "GSUP IE type %d not expected in PDP info\n", iei);
@@ -375,6 +380,11 @@
 			gsup_msg->cn_domain = *value;
 			break;
 
+		case OSMO_GSUP_CHARG_CHAR_IE:
+			gsup_msg->pdp_charg_enc = value;
+			gsup_msg->pdp_charg_enc_len = value_len;
+			break;
+
 		default:
 			LOGP(DLGSUP, LOGL_NOTICE,
 			     "GSUP IE type %d unknown\n", iei);
@@ -415,6 +425,11 @@
 				pdp_info->qos_enc_len, pdp_info->qos_enc);
 	}
 
+	if (pdp_info->pdp_charg_enc) {
+		msgb_tlv_put(msg, OSMO_GSUP_CHARG_CHAR_IE,
+				pdp_info->pdp_charg_enc_len, pdp_info->pdp_charg_enc);
+	}
+
 	/* Update length field */
 	*len_field = msgb_length(msg) - old_len;
 }
@@ -540,6 +555,11 @@
 		uint8_t dn = gsup_msg->cn_domain;
 		msgb_tlv_put(msg, OSMO_GSUP_CN_DOMAIN_IE, 1, &dn);
 	}
+
+	if (gsup_msg->pdp_charg_enc) {
+		msgb_tlv_put(msg, OSMO_GSUP_CHARG_CHAR_IE,
+				gsup_msg->pdp_charg_enc_len, gsup_msg->pdp_charg_enc);
+	}
 }
 
 /*! @} */