diff --git a/ccminer.cpp b/ccminer.cpp
index 1852cc3..a63c644 100644
--- a/ccminer.cpp
+++ b/ccminer.cpp
@@ -184,6 +184,7 @@ int opt_n_threads = 0;
 int opt_affinity = -1;
 int opt_priority = 0;
 static double opt_difficulty = 1; // CH
+bool opt_extranonce = true;
 bool opt_trust_pool = false;
 uint16_t opt_vote = 9999;
 int num_cpus;
diff --git a/util.cpp b/util.cpp
index b0ec0c6..2d9ae05 100644
--- a/util.cpp
+++ b/util.cpp
@@ -1125,6 +1125,8 @@ out:
 	return ret;
 }
 
+extern bool opt_extranonce;
+
 bool stratum_authorize(struct stratum_ctx *sctx, const char *user, const char *pass)
 {
 	json_t *val = NULL, *res_val, *err_val;
@@ -1170,6 +1172,9 @@ bool stratum_authorize(struct stratum_ctx *sctx, const char *user, const char *p
 	sctx->tm_connected = time(NULL);
 	ret = true;
 
+	if (!opt_extranonce)
+		goto out;
+
 	// subscribe to extranonce (optional)
 	sprintf(s, "{\"id\": 3, \"method\": \"mining.extranonce.subscribe\", \"params\": []}");