1 files changed, 1 insertions, 1 deletions
diff --git a/perl.h b/perl.h
index 67f2179dac..1bab046f9b 100644
--- a/perl.h
+++ b/perl.h
@@ -127,7 +127,7 @@
 
 #  ifdef USE_5005THREADS
 struct perl_thread;
-#    define tTHX	register struct perl_thread *
+#    define tTHX	struct perl_thread *
 #    define pTHX	register struct perl_thread *thr PERL_UNUSED_DECL
 #    define aTHX	thr
 #    define dTHR	dNOOP /* only backward compatibility */