diff --git a/SPEC.md b/SPEC.md
index 203c4f7..e6673d6 100644
--- a/SPEC.md
+++ b/SPEC.md
@@ -818,6 +818,8 @@ bom := '\u{FEFF}'
 
 disallowed-literal-code-points := See Table (Disallowed Literal Code Points)
 
+unicode := Any Unicode Scalar Value
+
 unicode-space := See Table (All [White_Space](#whitespace) unicode characters which are not `newline`)
 
 single-line-comment := '//' ^newline* (newline | eof)