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-rw-r--r--doc/rust.md4
1 files changed, 2 insertions, 2 deletions
diff --git a/doc/rust.md b/doc/rust.md
index 60a83662b0e..3435cdbf9fe 100644
--- a/doc/rust.md
+++ b/doc/rust.md
@@ -155,8 +155,8 @@ Some productions are defined by exclusion of particular Unicode characters:
 
 ~~~~~~~~ {.ebnf .gram}
 comment : block_comment | line_comment ;
-block_comment : "/*" block_comment_body * "*/" ;
-block_comment_body : non_star * | '*' non_slash ;
+block_comment : "/*" block_comment_body * "*" + "/" ;
+block_comment_body : non_star * | '*' + non_slash ;
 line_comment : "//" non_eol * ;
 ~~~~~~~~