diff --git a/src/mod_gnutls.c b/src/mod_gnutls.c
index 8b88749a..6aa20cc3 100644
--- a/src/mod_gnutls.c
+++ b/src/mod_gnutls.c
@@ -1719,6 +1719,8 @@ mod_gnutls_ssl_conf_cmd (server *srv, plugin_config_socket *s)
                     flag = 0;
                     ++v;
                 }
+                else if (*v == '+')
+                    ++v;
                 for (e = v; light_isalpha(*e); ++e) ;
                 switch ((int)(e-v)) {
                   case 11:
diff --git a/src/mod_mbedtls.c b/src/mod_mbedtls.c
index 7d6d94e6..44a40014 100644
--- a/src/mod_mbedtls.c
+++ b/src/mod_mbedtls.c
@@ -1385,6 +1385,8 @@ mod_mbedtls_ssl_conf_cmd (server *srv, plugin_config_socket *s)
                     flag = 0;
                     ++v;
                 }
+                else if (*v == '+')
+                    ++v;
                 for (e = v; light_isalpha(*e); ++e) ;
                 switch ((int)(e-v)) {
                   case 11:
diff --git a/src/mod_nss.c b/src/mod_nss.c
index a13462a5..815866ac 100644
--- a/src/mod_nss.c
+++ b/src/mod_nss.c
@@ -1572,6 +1572,8 @@ mod_nss_ssl_conf_cmd (server *srv, plugin_config_socket *s)
                     flag = 0;
                     ++v;
                 }
+                else if (*v == '+')
+                    ++v;
                 for (e = v; light_isalpha(*e); ++e) ;
                 switch ((int)(e-v)) {
                   case 11:
diff --git a/src/mod_openssl.c b/src/mod_openssl.c
index 2fd0363b..47b55a1a 100644
--- a/src/mod_openssl.c
+++ b/src/mod_openssl.c
@@ -3887,6 +3887,8 @@ mod_openssl_ssl_conf_cmd (server *srv, plugin_config_socket *s)
                     flag = 0;
                     ++v;
                 }
+                else if (*v == '+')
+                    ++v;
                 for (e = v; light_isalpha(*e); ++e) ;
                 switch ((int)(e-v)) {
                  #ifdef SSL_OP_ENABLE_KTLS
diff --git a/src/mod_wolfssl.c b/src/mod_wolfssl.c
index fdd2f084..2823f768 100644
--- a/src/mod_wolfssl.c
+++ b/src/mod_wolfssl.c
@@ -3589,6 +3589,8 @@ mod_openssl_ssl_conf_cmd (server *srv, plugin_config_socket *s)
                     flag = 0;
                     ++v;
                 }
+                else if (*v == '+')
+                    ++v;
                 for (e = v; light_isalpha(*e); ++e) ;
                 switch ((int)(e-v)) {
                   case 11: