diff --git a/util/mkdef.pl b/util/mkdef.pl
index 86e41df7..cbe2085c 100755
--- a/util/mkdef.pl
+++ b/util/mkdef.pl
@@ -1597,7 +1597,7 @@ sub get_openssl_version()
 	open (IN, "$fn") || die "Can't open opensslv.h";
 
 	while(<IN>) {
-		if (/OPENSSL_VERSION_TEXT\s+"GmSSL 2.0 - OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {
+		if (/OPENSSL_VERSION_TEXT\s+"GmSSL \d.\d.\d - OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {
 			my $suffix = $2;
 			(my $baseversion = $1) =~ s/\./_/g;
 			close IN;