diff --git a/prep b/prep
index a0ae3a5..dc60f19 100755
--- a/prep
+++ b/prep
@@ -6,7 +6,7 @@ sudo apt install -y ninja-build gettext unzip curl
 sudo update-alternatives --install /usr/bin/editor editor /usr/local/bin/nvim 1000
 sudo update-alternatives --install /usr/bin/vim vim /usr/local/bin/nvim 1000
 
-if command -v nvim &> /dev/null
+if ! command -v nvim &> /dev/null
 then
     sh ./build_neovim
 fi