diff --git a/src/libcharon/plugins/kernel_pfkey/kernel_pfkey_ipsec.c b/src/libcharon/plugins/kernel_pfkey/kernel_pfkey_ipsec.c
index 34089f912..78967c89c 100644
--- a/src/libcharon/plugins/kernel_pfkey/kernel_pfkey_ipsec.c
+++ b/src/libcharon/plugins/kernel_pfkey/kernel_pfkey_ipsec.c
@@ -895,6 +895,9 @@ static kernel_algorithm_t encryption_algs[] = {
 #endif
 #ifdef SADB_X_EALG_CAMELLIACBC
 	{ENCR_CAMELLIA_CBC,			SADB_X_EALG_CAMELLIACBC		},
+#endif
+#ifdef SADB_X_EALG_CHACHA20POLY1305
+	{ENCR_CHACHA20_POLY1305,	SADB_X_EALG_CHACHA20POLY1305},
 #endif
 	{END_OF_LIST,				0							},
 };