1 files changed, 2 insertions, 1 deletions
diff --git a/op.c b/op.c
index d9cb1d0b65..aeedab9287 100644
--- a/op.c
+++ b/op.c
@@ -4628,9 +4628,10 @@ Perl_newCONSTSUB(pTHX_ HV *stash, const char *name, SV *sv)
     CvCONST_on(cv);
     sv_setpvn((SV*)cv, "", 0);  /* prototype is "" */
 
+#ifdef USE_ITHREADS
     if (stash)
 	CopSTASH_free(PL_curcop);
-
+#endif
     LEAVE;
 
     return cv;