diff --git a/install.sh b/install.sh
index 78ff837..7905513 100644
--- a/install.sh
+++ b/install.sh
@@ -54,8 +54,8 @@ clear
 
 echo "Installiere nodeJS"
 curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.3/install.sh | bash
-source ~/.bashrc
-sh ~/.nvm/nvm.sh
+export NVM_DIR="$HOME/.nvm"
+[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
 nvm install v20
 
 # usefull packages für nodeJS