diff --git a/sh/core/code.awk b/sh/core/code.awk
index 190c636..b57fd05 100644
--- a/sh/core/code.awk
+++ b/sh/core/code.awk
@@ -10,11 +10,11 @@ function alias_eval(alias, name, type) {
 	print text "; }"
 }
 
-function append(line) {
+function append(string) {
 	if (doc) {
 		doc = doc "\n"
 	}
-	doc = doc line
+	doc = doc string
 }
 
 function extract(string, type) {