diff --git a/dictionary.json b/dictionary.json
index cc4e7bf22..84e0b785f 100644
--- a/dictionary.json
+++ b/dictionary.json
@@ -1447,6 +1447,10 @@
       "type": "extension"
     },
     "extension_list": {
+      "@deprecated": {
+        "message": "Use the <code> tls_extension_list </code> attribute instead.",
+        "since": "1.1.0"
+      },
       "caption": "Extension List",
       "description": "The list of TLS extensions.",
       "is_array": true,
@@ -3492,6 +3496,12 @@
       "description": "The Transport Layer Security (TLS) attributes.",
       "type": "tls"
     },
+    "tls_extension_list": {
+      "caption": "TLS Extension List",
+      "description": "The list of TLS extensions.",
+      "is_array": true,
+      "type": "tls_extension"
+    },
     "to": {
       "caption": "To",
       "description": "The email header To values, as defined by RFC 5322.",
diff --git a/objects/tls.json b/objects/tls.json
index 1f7d55ba3..84b19bcd0 100644
--- a/objects/tls.json
+++ b/objects/tls.json
@@ -22,6 +22,9 @@
     "extension_list": {
       "requirement": "optional"
     },
+    "tls_extension_list": {
+      "requirement": "optional"
+    },
     "handshake_dur": {
       "requirement": "optional"
     },