1 files changed, 1 insertions, 1 deletions
diff --git a/process.c b/process.c
index df0350e3f2..7ca3dfe063 100644
--- a/process.c
+++ b/process.c
@@ -2338,7 +2338,7 @@ rb_run_exec_options_err(const struct rb_exec_arg *e, struct rb_exec_arg *s, char
         mode_t mask = NUM2MODET(obj);
         mode_t oldmask = umask(mask); /* never fail */
         if (!NIL_P(soptions))
-            rb_ary_store(soptions, EXEC_OPTION_UMASK, LONG2NUM(oldmask));
+            rb_ary_store(soptions, EXEC_OPTION_UMASK, MODET2NUM(oldmask));
     }
 
     obj = rb_ary_entry(options, EXEC_OPTION_DUP2);