diff --git a/package/msmtp/msmtp.mk b/package/msmtp/msmtp.mk
index a495072abf..a26de92ef9 100644
--- a/package/msmtp/msmtp.mk
+++ b/package/msmtp/msmtp.mk
@@ -41,17 +41,17 @@ MSMTP_CONF_OPTS += --without-libsecret
 endif
 
 ifeq ($(BR2_PACKAGE_OPENSSL),y)
-MSMTP_CONF_OPTS += --with-ssl=openssl
+MSMTP_CONF_OPTS += --with-tls=openssl
 MSMTP_DEPENDENCIES += openssl
 ifeq ($(BR2_STATIC_LIBS),y)
 # openssl uses zlib, so we need to explicitly link with it when static
 MSMTP_CONF_ENV += LIBS=-lz
 endif
 else ifeq ($(BR2_PACKAGE_GNUTLS),y)
-MSMTP_CONF_OPTS += --with-ssl=gnutls
+MSMTP_CONF_OPTS += --with-tls=gnutls
 MSMTP_DEPENDENCIES += gnutls
 else
-MSMTP_CONF_OPTS += --with-ssl=no
+MSMTP_CONF_OPTS += --with-tls=no
 endif
 
 $(eval $(autotools-package))