1 files changed, 8 insertions, 1 deletions

diff --git a/ext.c b/ext.c
index f3e783da..bb090d0f 100644
--- a/ext.c
+++ b/ext.c
@@ -229,8 +229,15 @@ get_argument(int i)
 
 	t = GET_PARAM(i);
 
-	if (t->type == Node_array_ref)
+	if (t->type == Node_array_ref) {
+		if (t->orig_array->type == Node_var) {
+			/* already a scalar, can no longer use it as array */ 
+			t->type = Node_var;
+			t->var_value = Nnull_string;
+			return t;
+		}
 		return t->orig_array; 	/* Node_var_new or Node_var_array */
+	}
 	if (t->type == Node_var_new || t->type == Node_var_array)
 		return t;
 	return t->var_value;