diff --git a/builtin-iterator.go b/builtin-iterator.go
index b6628a4..d50dfb3 100644
--- a/builtin-iterator.go
+++ b/builtin-iterator.go
@@ -12,6 +12,7 @@ import (
 const (
 	iterParamOperator = "operator"
 	iterParamVars     = "vars"
+	iterVarStatus = "status"
 )
 
 func parseRunArgs(localCtx ExprContext, args []any) (it Iterator, op Functor, err error) {
@@ -54,7 +55,7 @@ func runFunc(ctx ExprContext, name string, args []any) (result any, err error) {
 	var item any
 
 	localCtx := ctx.Clone()
-	localCtx.UnsafeSetVar("it_status", nil)
+	localCtx.UnsafeSetVar(iterVarStatus, nil)
 
 	if it, op, err = parseRunArgs(localCtx, args); err != nil {
 		return
@@ -84,7 +85,7 @@ func runFunc(ctx ExprContext, name string, args []any) (result any, err error) {
 		err = nil
 	}
 	if err == nil {
-		result, _ = localCtx.GetVar("it_status")
+		result, _ = localCtx.GetVar(iterVarStatus)
 	}
 	return
 }