diff --git a/libraries/ESP8266WiFi/src/WiFiClientSecure.cpp b/libraries/ESP8266WiFi/src/WiFiClientSecure.cpp
index e7bcb1a4e4..aba9a95897 100644
--- a/libraries/ESP8266WiFi/src/WiFiClientSecure.cpp
+++ b/libraries/ESP8266WiFi/src/WiFiClientSecure.cpp
@@ -56,7 +56,7 @@ class SSLContext
     SSLContext()
     {
         if (_ssl_ctx_refcnt == 0) {
-            _ssl_ctx = ssl_ctx_new(SSL_SERVER_VERIFY_LATER | SSL_DEBUG_OPTS | SSL_CONNECT_IN_PARTS | SSL_READ_BLOCKING | SSL_NO_DEFAULT_KEY, 0);
+            _ssl_ctx = ssl_ctx_new(SSL_SERVER_VERIFY_LATER | SSL_DEBUG_OPTS | SSL_CONNECT_IN_PARTS | SSL_NO_DEFAULT_KEY, 0);
         }
         ++_ssl_ctx_refcnt;
     }