1 files changed, 4 insertions, 4 deletions
diff --git a/cv.h b/cv.h
index 7fa9400965..b4b24394d2 100644
--- a/cv.h
+++ b/cv.h
@@ -29,10 +29,10 @@ struct xpvcv {
     long	xcv_depth;	/* >= 2 indicates recursive call */
     AV *	xcv_padlist;
     CV *	xcv_outside;
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
     perl_mutex *xcv_mutexp;
     struct perl_thread *xcv_owner;	/* current owner thread */
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
     cv_flags_t	xcv_flags;
 };
 
@@ -64,10 +64,10 @@ Returns the stash of the CV.
 #define CvDEPTH(sv)	((XPVCV*)SvANY(sv))->xcv_depth
 #define CvPADLIST(sv)	((XPVCV*)SvANY(sv))->xcv_padlist
 #define CvOUTSIDE(sv)	((XPVCV*)SvANY(sv))->xcv_outside
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
 #define CvMUTEXP(sv)	((XPVCV*)SvANY(sv))->xcv_mutexp
 #define CvOWNER(sv)	((XPVCV*)SvANY(sv))->xcv_owner
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
 #define CvFLAGS(sv)	((XPVCV*)SvANY(sv))->xcv_flags
 
 #define CVf_CLONE	0x0001	/* anon CV uses external lexicals */