diff --git a/pkgs/racket-test-core/tests/racket/jitinline.rktl b/pkgs/racket-test-core/tests/racket/jitinline.rktl
index 7cea63a43b..2a70d27b15 100644
--- a/pkgs/racket-test-core/tests/racket/jitinline.rktl
+++ b/pkgs/racket-test-core/tests/racket/jitinline.rktl
@@ -967,6 +967,20 @@
   (test '(#f =) apply-an-accessor (alpha 'a) x?)
   (test '(#f =) apply-an-accessor (beta 'b) x?))
 
+;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Check case of an index that's a module-level variable that is definitely
+;; defined but not a known constant
+
+(module assign-to-bytes-array-with-non-constant-offset racket/base
+  (provide out)
+  (define buf (make-bytes 4 7))
+  (define offset (if (even? (random 1)) 2 2))
+  (define f (lambda () (bytes-set! buf offset 9) (bytes-ref buf offset)))
+  (set! f f)
+  (define out (f)))
+
+(test 9 dynamic-require ''assign-to-bytes-array-with-non-constant-offset 'out)
+
 ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
 (report-errs)
diff --git a/racket/src/racket/src/jitinline.c b/racket/src/racket/src/jitinline.c
index 2e7c3bb3cd..5c7ee393ee 100644
--- a/racket/src/racket/src/jitinline.c
+++ b/racket/src/racket/src/jitinline.c
@@ -4432,7 +4432,7 @@ int scheme_generate_inlined_nary(mz_jit_state *jitter, Scheme_App_Rec *app, int
 
       simple = (SCHEME_INTP(app->args[2])
 		&& (SCHEME_INT_VAL(app->args[2]) >= 0));
-      if (simple || scheme_can_delay_and_avoids_r1(app->args[2]))
+      if (simple || scheme_can_delay_and_avoids_r1_r2(app->args[2]))
         can_delay_index = 1;
       else
         can_delay_index = 0;