diff --git a/build/user.sh b/build/user.sh
index 99c516d..77e1617 100644
--- a/build/user.sh
+++ b/build/user.sh
@@ -45,7 +45,7 @@ pushd ~/.nvm
 git checkout 73438e339e242fce0cba443e5c4322ac996e9197
 popd
 
-export NVM_DIR="~/.nvm"
+export NVM_DIR="$HOME/.nvm"
 source "$NVM_DIR/nvm.sh"
 
 nvm install node