--- testssl/testssl.sh	2017-09-24 16:53:29.395263437 +0200
+++ testssl-new/testssl.sh	2017-09-24 16:53:41.221154492 +0200
@@ -165,6 +165,7 @@
 # following variables make use of $ENV, e.g. OPENSSL=<myprivate_path_to_openssl> ./testssl.sh <host>
 # 0 means (normally) true here. Some of the variables are also accessible with a command line switch, see --help
 declare -x OPENSSL OPENSSL_TIMEOUT
+OPENSSL=${OPENSSL:-""}
 FAST_SOCKET=${FAST_SOCKET:-false}       # EXPERIMENTAL feature to accelerate sockets -- DO NOT USE it for production
 COLOR=${COLOR:-2}                       # 2: Full color, 1: b/w+positioning, 0: no ESC at all
 COLORBLIND=${COLORBLIND:-false}         # if true, swap blue and green in the output