diff --git a/Mk/bin/install-opt.sh b/Mk/bin/install-opt.sh
index 5b930ab..e9e19c0 100755
--- a/Mk/bin/install-opt.sh
+++ b/Mk/bin/install-opt.sh
@@ -9,17 +9,17 @@ if [ -z "$EVENT" ]; then
 fi
 
 # TLSv1 == TLSv10 == SSLv3
-NO_TLS10= no
-NO_TLS11= no
+NO_TLS10=no
+NO_TLS11=no
 
 case "$SSL" in
 openssl-0.9.*)
 	SSLURL=https://www.openssl.org/source/old/0.9.x/$SSL.tar.gz
-	NO_TLS11= yes
+	NO_TLS11=yes
 	;;
 openssl-1.0.0*)
 	SSLURL=https://www.openssl.org/source/old/1.0.0/$SSL.tar.gz
-	NO_TLS11= yes
+	NO_TLS11=yes
 	;;
 openssl-1.0.1*)
 	SSLURL=https://www.openssl.org/source/old/1.0.1/$SSL.tar.gz
@@ -38,7 +38,7 @@ openssl-*)
 	;;
 libressl-2.7.4*)
 	SSLURL=http://ftp.fau.de/pub/OpenBSD/LibreSSL/$SSL.tar.gz
-	NO_TLS10= yes
+	NO_TLS10=yes
 	;;
 libressl-*)
 	#SSLURL=https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/$SSL.tar.gz
@@ -49,6 +49,7 @@ libressl-*)
 	;;
 esac
 
+export NO_TLS10
 export NO_TLS11
 
 case "$EVENT" in