diff --git a/grammar/grammar.y b/grammar/grammar.y
index c63c22e..039b1bf 100644
--- a/grammar/grammar.y
+++ b/grammar/grammar.y
@@ -22,7 +22,7 @@ FnProto <- FnCC? KEYWORD_fn IDENTIFIER? LPAREN ParamDeclList RPAREN ByteAlign? L
 
 VarDecl <- (KEYWORD_const / KEYWORD_var) IDENTIFIER (COLON TypeExpr)? ByteAlign? LinkSection? (EQUAL Expr)? SEMICOLON
 
-ContainerField <- IDENTIFIER (COLON TypeExpr)? (EQUAL Expr)?
+ContainerField <- IDENTIFIER (COLON TypeExpr ByteAlign?)? (EQUAL Expr)?
 
 # *** Block Level ***
 Statement