diff --git a/install_virtualenv.sh b/install_virtualenv.sh
index bde03b7b..f20cb93f 100755
--- a/install_virtualenv.sh
+++ b/install_virtualenv.sh
@@ -15,9 +15,9 @@ if [ -z "$VIRTUAL_ENV" ]; then
     echo export AIL_FLASK=$(pwd)/var/www/ >> ./AILENV/bin/activate
     echo export AIL_REDIS=$(pwd)/redis/src/ >> ./AILENV/bin/activate
     echo export AIL_ARDB=$(pwd)/ardb/src/ >> ./AILENV/bin/activate
-fi
 
-. ./AILENV/bin/activate
+    . ./AILENV/bin/activate
+fi
 
 pip3 install -U pip
 pip3 install 'git+https://github.com/D4-project/BGP-Ranking.git/@7e698f87366e6f99b4d0d11852737db28e3ddc62#egg=pybgpranking&subdirectory=client'
diff --git a/installing_deps.sh b/installing_deps.sh
index 28de889e..dfa8558e 100755
--- a/installing_deps.sh
+++ b/installing_deps.sh
@@ -89,7 +89,9 @@ fi
 ./install_virtualenv.sh
 
 # force virtualenv activation
-. ./AILENV/bin/activate
+if [ -z "$VIRTUAL_ENV" ]; then
+    . ./AILENV/bin/activate
+fi
 
 pushd ${AIL_BIN}/helper/gen_cert
 ./gen_root.sh