diff --git a/yaml.lua b/yaml.lua
index 55211dc..457720b 100644
--- a/yaml.lua
+++ b/yaml.lua
@@ -134,7 +134,7 @@ local tokens = {
   {":",         "^:"},
   {"pipe",      "^(|)(%d*[+%-]?)", sep = "\n"},
   {"pipe",      "^(>)(%d*[+%-]?)", sep = " "},
-  {"id",        "^([%w][%w %-_]*)(:[%s%c])"},
+  {"id",        "^([%w/$][%w %-_/$]*)(:[%s%c])"},
   {"string",    "^[^%c]+", noinline = true},
   {"string",    "^[^,%]}%c ]+"}
 };