diff --git a/static/syntax/json.json b/static/syntax/json.json
index 9d24f26..a091f0a 100644
--- a/static/syntax/json.json
+++ b/static/syntax/json.json
@@ -1,7 +1,7 @@
 {
     "patterns": [
         { "regex": "[a-zA-Z_][a-zA-Z0-9_]*", "is": "error" },
-        { "regex": "[0-9_]+(\\.[0-9_]*([eE][-+]?[0-9_]+)?)?", "is": "literal" },
+        { "regex": "[0-9]+(\\.[0-9]*([eE][-+]?[0-9]+)?)?", "is": "literal" },
         {
             "regex": "\"(\\\\\"|[^\"])*\"(:)",
             "is": { "default": "keyword2", "captures": ["keyword2", "punct"] }