diff --git a/src/eap-peap.c b/src/eap-peap.c
index fe85c7ca..2156e10a 100644
--- a/src/eap-peap.c
+++ b/src/eap-peap.c
@@ -902,7 +902,7 @@ static int eap_peap_check_settings(struct l_settings *settings,
 		secret = l_queue_find(secrets, eap_secret_info_match,
 					passphrase_entry);
 		if (secret)
-			passphrase = secret->value;
+			passphrase = l_strdup(secret->value);
 	}
 
 	if (path) {