diff --git a/clients/common/nm-meta-setting-desc.c b/clients/common/nm-meta-setting-desc.c
index d5435683e1..a62504448c 100644
--- a/clients/common/nm-meta-setting-desc.c
+++ b/clients/common/nm-meta-setting-desc.c
@@ -4848,16 +4848,6 @@ _gobject_enum_pre_set_notify_fcn_wireless_security_wep_key_type (const NMMetaPro
 	}
 }
 
-static const char *
-_validate_fcn_wireless_security_psk (const char *value, char **out_to_free, GError **error)
-{
-	if (!nm_utils_wpa_psk_valid (value)) {
-		g_set_error (error, 1, 0, _("'%s' is not a valid PSK"), value);
-		return NULL;
-	}
-	return value;
-}
-
 /*****************************************************************************/
 
 static gconstpointer
@@ -7757,9 +7747,6 @@ static const NMMetaPropertyInfo *const property_infos_WIRELESS_SECURITY[] = {
 	PROPERTY_INFO_WITH_DESC (NM_SETTING_WIRELESS_SECURITY_PSK,
 		.is_secret =                    TRUE,
 		.property_type =                &_pt_gobject_string,
-		.property_typ_data = DEFINE_PROPERTY_TYP_DATA_SUBTYPE (gobject_string,
-			.validate_fcn =             _validate_fcn_wireless_security_psk,
-		),
 	),
 	PROPERTY_INFO_WITH_DESC (NM_SETTING_WIRELESS_SECURITY_PSK_FLAGS,
 		.property_type =                &_pt_gobject_secret_flags,