diff --git a/compiler/vop.lisp b/compiler/vop.lisp
index 371ede8c6320946f32f352b39ba5f156ed2f1f91..68f810b96759a61f66d2e7027252e62d23c1ca0e 100644
--- a/compiler/vop.lisp
+++ b/compiler/vop.lisp
@@ -37,10 +37,6 @@
 (deftype local-tn-vector () `(simple-vector ,local-tn-limit))
 (deftype local-tn-bit-vector () `(simple-bit-vector ,local-tn-limit))
 
-;;; Maximum number of SCs allowed.
-;;;
-(defconstant sc-number-limit 32)
-
 ;;; Type of an SC number.
 (deftype sc-number () `(integer 0 (,sc-number-limit)))