diff --git a/sh/core/code.awk b/sh/core/code.awk
index d9829c1..daa8001 100644
--- a/sh/core/code.awk
+++ b/sh/core/code.awk
@@ -206,10 +206,10 @@ function parse(string, command) {
 	# alias
 	} else if (match(string, re["alias"])) {
 		current_match = "alias"
-		alias = strip_first(string, "#=")
-		ids_put(current_match, alias)
-		aliases[alias] = ""
-		doc_append("= " alias)
+		current_alias = strip_first(string, "#=")
+		ids_put(current_match, current_alias)
+		aliases[current_alias] = ""
+		doc_append("= " current_alias)
 
 	# command
 	} else if (match(string, re["command"])) {
@@ -421,7 +421,7 @@ if (action == "doc") {
 
 	# alias
 	} else if (current_match == "alias") {
-		alias = ""
+		current_alias = ""
 
 	# command
 	} else if (current_match == "command") {