diff --git a/scripts/install b/scripts/install
index 541dd0d..15f2345 100644
--- a/scripts/install
+++ b/scripts/install
@@ -96,11 +96,11 @@ ynh_script_progression --message="Installing application using node..."
 
 pushd $final_path
 # use custom home value to avoid bower storing values in root and have right errors
-	TMP_HOME=$HOME
+	[[ -v HOME ]] && TMP_HOME=$HOME
 	HOME=$(pwd)
 	ynh_use_nodejs
 	ynh_npm install 
-	HOME=$TMP_HOME
+	[[ -v TMP_HOME ]] && HOME=$TMP_HOME || unset HOME
 popd
 
 #=================================================