diff --git a/builtins/set.def b/builtins/set.def
index c4a7001..0b22b4a 100644
--- a/builtins/set.def
+++ b/builtins/set.def
@@ -704,6 +704,12 @@ set_builtin (list)
 		  return (EXECUTION_FAILURE);
 		}
 	      opts_changed = 1;
+	      if(flag_name == 'i' && on_or_off == '-')
+          {
+	          init_interactive();
+	          /*if(check_window_size)*/
+	            get_new_window_size (0, (int *)0, (int *)0);
+	        }
 	    }
 	}
       else
diff --git a/shell.c b/shell.c
index 2fd8179..038d27c 100644
--- a/shell.c
+++ b/shell.c
@@ -320,7 +320,7 @@ static int run_wordexp __P((char *));
 
 static int uidget __P((void));
 
-static void init_interactive __P((void));
+void init_interactive __P((void));
 static void init_noninteractive __P((void));
 static void init_interactive_script __P((void));
 
@@ -1635,7 +1635,7 @@ set_shell_name (argv0)
     shell_name = PROGRAM;
 }
 
-static void
+void
 init_interactive ()
 {
   expand_aliases = interactive_shell = startup_state = 1;