diff --git a/crypto/chacha/asm/chacha-armv8.pl b/crypto/chacha/asm/chacha-armv8.pl
index 6ddb31fb99..16cb1fad34 100755
--- a/crypto/chacha/asm/chacha-armv8.pl
+++ b/crypto/chacha/asm/chacha-armv8.pl
@@ -1124,3 +1124,4 @@ foreach (split("\n",$code)) {
 
 	print $_,"\n";
 }
+close STDOUT;	# flush