diff --git a/src/libcharon/plugins/eap_sim/eap_sim_peer.c b/src/libcharon/plugins/eap_sim/eap_sim_peer.c
index 83041b9ea..a7a4b2671 100644
--- a/src/libcharon/plugins/eap_sim/eap_sim_peer.c
+++ b/src/libcharon/plugins/eap_sim/eap_sim_peer.c
@@ -180,6 +180,7 @@ static status_t process_start(private_eap_sim_peer_t *this,
 						supported = TRUE;
 						break;
 					}
+					data = chunk_skip(data, version.len);
 				}
 				break;
 			}