diff --git a/include/common/defaults.h b/include/common/defaults.h
index ae49263a1..9b54276b2 100644
--- a/include/common/defaults.h
+++ b/include/common/defaults.h
@@ -191,4 +191,9 @@
 #define LISTEN_DEFAULT_CIPHERS NULL
 #endif
 
+/* ssl cache size */
+#ifndef SSLCACHESIZE
+#define SSLCACHESIZE 20000
+#endif
+
 #endif /* _COMMON_DEFAULTS_H */
diff --git a/src/haproxy.c b/src/haproxy.c
index 5e6ee4014..97a403999 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -132,7 +132,7 @@ struct global global = {
 		.maxrewrite = MAXREWRITE,
 		.chksize = BUFSIZE,
 #ifdef USE_OPENSSL
-		.sslcachesize = 20000,
+		.sslcachesize = SSLCACHESIZE,
 #endif
 #ifdef USE_ZLIB
 		.zlibmemlevel = 8,