diff --git a/static/syntax/lua.json b/static/syntax/lua.json
index 30cef12..9a34a80 100644
--- a/static/syntax/lua.json
+++ b/static/syntax/lua.json
@@ -18,7 +18,10 @@
             "is": "literal"
         },
         { "regex": "0[xX]\\.[0-9a-fA-F]+([pP][-+]?[0-9]+)?", "is": "literal" },
-        { "regex": "[0-9_]+(\\.[0-9_]*([eE][-+]?[0-9_]+)?)?", "is": "literal" },
+        {
+            "regex": "[0-9][0-9_]+(\\.[0-9_]*([eE][-+]?[0-9_]+)?)?",
+            "is": "literal"
+        },
         {
             "regex": "<([a-zA-Z_][a-zA-Z0-9_]*)>",
             "is": {