diff --git a/install.sh b/install.sh
index 6d76e6e..bcea8d3 100755
--- a/install.sh
+++ b/install.sh
@@ -81,13 +81,19 @@ function configure_default {
 }
 
 function install_neovim {
-  if ! grep -q nvim-vanilla ~/.bashrc; then
-    alias nvim-vanilla='NVIM_APPNAME=nvim-vanilla nvim'
+  local shellrc alias_expr
+  shellrc="$HOME/.bashrc"
+  if ! grep -q nvim-vanilla "$shellrc"; then
+    alias_expr="alias nvim-vanilla='NVIM_APPNAME=nvim-vanilla nvim'"
+    echo "$alias_expr" >>"$shellrc"
+    eval "$alias_expr"
+    echo 'nvim-vanilla created!'
   else
     echo 'nvim-vanilla ready!'
   fi
 }
 ## MAIN
+set -Eue
 
 assert_debian13
 assert_gnome_desktop