diff --git a/utils/build_script_linux.sh b/utils/build_script_linux.sh
index 2cd431a2..fe5adbef 100755
--- a/utils/build_script_linux.sh
+++ b/utils/build_script_linux.sh
@@ -3,16 +3,19 @@
 # Environment prerequisites:
 # 1) QT_PREFIX_PATH should be set to Qt libs folder
 # 2) BOOST_ROOT should be set to the root of Boost
+# 3) OPENSSL_ROOT_DIR should be set to the root of OpenSSL
 #
 # for example, place these lines to the end of your ~/.bashrc :
 #
 # export BOOST_ROOT=/home/user/boost_1_66_0
 # export QT_PREFIX_PATH=/home/user/Qt5.10.1/5.10.1/gcc_64
+# export OPENSSL_ROOT_DIR=/home/user/openssl
 
 ARCHIVE_NAME_PREFIX=zano-linux-x64-
 
 : "${BOOST_ROOT:?BOOST_ROOT should be set to the root of Boost, ex.: /home/user/boost_1_66_0}"
 : "${QT_PREFIX_PATH:?QT_PREFIX_PATH should be set to Qt libs folder, ex.: /home/user/Qt5.10.1/5.10.1/gcc_64}"
+: "${OPENSSL_ROOT_DIR:?OPENSSL_ROOT_DIR should be set to OpenSSL root folder, ex.: /home/user/openssl}"
 
 if [ -n "$build_prefix" ]; then
   ARCHIVE_NAME_PREFIX=${ARCHIVE_NAME_PREFIX}${build_prefix}-
@@ -40,7 +43,7 @@ echo "--------------------------------------------------"
 echo "Building...." 
 
 rm -rf build; mkdir -p build/release; cd build/release; 
-cmake $testnet_def -D STATIC=true -D ARCH=x86-64 -D BUILD_GUI=TRUE -D CMAKE_PREFIX_PATH="$QT_PREFIX_PATH" -D CMAKE_BUILD_TYPE=Release ../..
+cmake $testnet_def -D STATIC=true -D ARCH=x86-64 -D BUILD_GUI=TRUE -D OPENSSL_ROOT_DIR="$OPENSSL_ROOT_DIR" -D CMAKE_PREFIX_PATH="$QT_PREFIX_PATH" -D CMAKE_BUILD_TYPE=Release ../..
 if [ $? -ne 0 ]; then
     echo "Failed to run cmake"
     exit 1