diff --git a/utils/fuel-qa-builder/prepare_env.sh b/utils/fuel-qa-builder/prepare_env.sh
index e43041f..c4fef67 100755
--- a/utils/fuel-qa-builder/prepare_env.sh
+++ b/utils/fuel-qa-builder/prepare_env.sh
@@ -4,9 +4,9 @@ BASE_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
 pip install -U pip || true
 
-VIRTUALENV_EXIST=`dpkg -l | grep python-virtualenv && pip list | grep virtualenv`
+VIRTUALENV_EXIST=`dpkg -l | grep python-virtualenv || pip list | grep virtualenv`
 
-if [[ -z "VIRTUALENV_EXIST" ]]; then
+if [[ -z "${VIRTUALENV_EXIST}" ]]; then
     echo 'There is no virtualnev'
     pip install virtualenv || apt-get install python-virtualenv || true
 fi
@@ -29,4 +29,4 @@ cp "${BASE_DIR}"/MANIFEST.in  ./ && cp "${BASE_DIR}"/setup.py ./
 
 python setup.py sdist && pip install dist/fuelweb_test*.tar.gz && pip install -r "${BASE_DIR}"/../../requirements.txt
 
-cd "${BASE_DIR}" && rm -rf tmp
\ No newline at end of file
+cd "${BASE_DIR}" && rm -rf tmp