1 files changed, 3 insertions, 1 deletions
diff --git a/subst.c b/subst.c
index 70654e6..9e8447a 100644
--- a/subst.c
+++ b/subst.c
@@ -8047,7 +8047,9 @@ comsub:
 
 	  goto return0;
 	}
-      else if (var = find_variable_last_nameref (temp1))
+      else if (var && (invisible_p (var) || var_isset (var) == 0))
+	temp = (char *)NULL;
+      else if ((var = find_variable_last_nameref (temp1)) && var_isset (var) && invisible_p (var) == 0)
 	{
 	  temp = nameref_cell (var);
 #if defined (ARRAY_VARS)