diff --git a/doc/langref.html.in b/doc/langref.html.in
index dcf13e812d7ad056387c1879cc94f94226127089..e8189e5c420ce42559b313b9b16090a5c8b94455 100644
--- a/doc/langref.html.in
+++ b/doc/langref.html.in
@@ -7987,7 +7987,7 @@ AsmInput <- COLON AsmInputList AsmClobbers?
 
 AsmInputItem <- LBRACKET IDENTIFIER RBRACKET STRINGLITERAL LPAREN Expr RPAREN
 
-AsmClobbers <- COLON StringList
+AsmClobbers <- COLON Expr
 
 # *** Helper grammar ***
 BreakLabel <- COLON IDENTIFIER