diff --git a/rc/javascript.kak b/rc/javascript.kak
index 93815911..6c5e3b10 100644
--- a/rc/javascript.kak
+++ b/rc/javascript.kak
@@ -29,6 +29,7 @@ addhl -group /javascript/comment       fill comment
 
 addhl -group /javascript/code regex \$\w* 0:identifier
 addhl -group /javascript/code regex \<(document|false|null|parent|self|this|true|undefined|window)\> 0:value
+addhl -group /javascript/code regex "-?[0-9]*\.?[0-9]+" 0:value
 addhl -group /javascript/code regex \<(Array|Boolean|Date|Function|Number|Object|RegExp|String)\> 0:type
 
 # Keywords are collected at