diff --git a/crypto/bn/asm/x86_64-gf2m.pl b/crypto/bn/asm/x86_64-gf2m.pl
index bbc66ed3cf2497928b3b569587673c96c7fc1e01..226c66c35e35570715d8f7cc41215ef4e6c42a05 100644
--- a/crypto/bn/asm/x86_64-gf2m.pl
+++ b/crypto/bn/asm/x86_64-gf2m.pl
@@ -32,7 +32,7 @@ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 die "can't locate x86_64-xlate.pl";
 
 open OUT,"| \"$^X\" $xlate $flavour $output";
-STDOUT=*OUT;
+*STDOUT=*OUT;
 
 ($lo,$hi)=("%rax","%rdx");	$a=$lo;
 ($i0,$i1)=("%rsi","%rdi");