diff --git a/util/cpp/domacro.c b/util/cpp/domacro.c
index 2b908448b..d00abef11 100644
--- a/util/cpp/domacro.c
+++ b/util/cpp/domacro.c
@@ -120,7 +120,7 @@ domacro()
 	case INTEGER:		/* # <integer> [<filespecifier>]?	*/
 		do_line((unsigned int)tk.tk_val);
 		break;
-	case EOI:	/* only `#' on this line: do nothing, ignore	*/
+	case EOF:	/* only `#' on this line: do nothing, ignore	*/
 		break;
 	default:	/* invalid token following '#'		*/
 		error("illegal # line");