1 files changed, 4 insertions, 2 deletions

diff --git a/shell/hush.c b/shell/hush.c
index c69e4ec8a..5c5715b3f 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -9606,6 +9606,7 @@ static int FAST_FUNC builtin_source(char **argv)
         char *arg_path, *filename;
         FILE *input;
         save_arg_t sv;
+        char *args_need_save;
 #if ENABLE_HUSH_FUNCTIONS
         smallint sv_flg;
 #endif
@@ -9637,7 +9638,8 @@ static int FAST_FUNC builtin_source(char **argv)
         /* "we are inside sourced file, ok to use return" */
         G_flag_return_in_progress = -1;
 #endif
-        if (argv[1])
+        args_need_save = argv[1]; /* used as a boolean variable */
+        if (args_need_save)
                 save_and_replace_G_args(&sv, argv);
 
         /* "false; . ./empty_line; echo Zero:$?" should print 0 */
@@ -9645,7 +9647,7 @@ static int FAST_FUNC builtin_source(char **argv)
         parse_and_run_file(input);
         fclose_and_forget(input);
 
-        if (argv[1])
+        if (args_need_save) /* can't use argv[1] instead: "shift" can mangle it */
                 restore_G_args(&sv, argv);
 #if ENABLE_HUSH_FUNCTIONS
         G_flag_return_in_progress = sv_flg;