diff --git a/src/libstrongswan/crypto/proposal/proposal_keywords_static.txt b/src/libstrongswan/crypto/proposal/proposal_keywords_static.txt
index a3c5c0f3a..87602430d 100644
--- a/src/libstrongswan/crypto/proposal/proposal_keywords_static.txt
+++ b/src/libstrongswan/crypto/proposal/proposal_keywords_static.txt
@@ -141,6 +141,7 @@ prfmd5,           PSEUDO_RANDOM_FUNCTION, PRF_HMAC_MD5,            0
 prfaesxcbc,       PSEUDO_RANDOM_FUNCTION, PRF_AES128_XCBC,         0
 prfcamelliaxcbc,  PSEUDO_RANDOM_FUNCTION, PRF_CAMELLIA128_XCBC,    0
 prfaescmac,       PSEUDO_RANDOM_FUNCTION, PRF_AES128_CMAC,         0
+modpnone,         DIFFIE_HELLMAN_GROUP, MODP_NONE,                 0
 modpnull,         DIFFIE_HELLMAN_GROUP, MODP_NULL,                 0
 modp768,          DIFFIE_HELLMAN_GROUP, MODP_768_BIT,              0
 modp1024,         DIFFIE_HELLMAN_GROUP, MODP_1024_BIT,             0