1 files changed, 1 insertions, 1 deletions

diff --git a/configure.ac b/configure.ac
index 5a9b3ff11..14e7c4a61 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2612,7 +2612,7 @@ if test "x$openssl" = "xyes" ; then
                                 AC_MSG_ERROR([OpenSSL >= 1.0.1 required (have "$ssl_library_ver")])
                                 ;;
                         100*)   ;; # 1.0.x
-                        101000[0123456]*)
+                        101000[[0123456]]*)
                                 # https://github.com/openssl/openssl/pull/4613
                                 AC_MSG_ERROR([OpenSSL 1.1.x versions prior to 1.1.0g have a bug that breaks their use with OpenSSH (have "$ssl_library_ver")])
                                 ;;