diff --git a/src/ssl_sock.c b/src/ssl_sock.c
index 0b8cfb883..cbc1eb94b 100644
--- a/src/ssl_sock.c
+++ b/src/ssl_sock.c
@@ -5229,8 +5229,10 @@ int ssl_sock_prepare_srv_ctx(struct server *srv)
 {
 	int cfgerr = 0;
 	SSL_CTX *ctx;
-	/* Automatic memory computations need to know we use SSL there */
-	global.ssl_used_backend = 1;
+	/* Automatic memory computations need to know we use SSL there
+	 * If this is an internal proxy, don't use it for the computation */
+	if (!(srv->proxy && srv->proxy->cap & PR_CAP_INT))
+		global.ssl_used_backend = 1;
 
 	/* Initiate SSL context for current server */
 	if (!srv->ssl_ctx.reused_sess) {