diff --git a/pkgs/by-name/oh/oh-my-zsh/package.nix b/pkgs/by-name/oh/oh-my-zsh/package.nix
index a6042b18ed2a..9ad72a614144 100644
--- a/pkgs/by-name/oh/oh-my-zsh/package.nix
+++ b/pkgs/by-name/oh/oh-my-zsh/package.nix
@@ -48,7 +48,7 @@ stdenv.mkDerivation rec {
     chmod -R +w templates
 
     # Change the path to oh-my-zsh dir and disable auto-updating.
-    sed -i -e "s#ZSH=\$HOME/.oh-my-zsh#ZSH=$outdir#" \
+    sed -i -e "s#ZSH=\"\$HOME/.oh-my-zsh\"#ZSH=\"$outdir\"#" \
            -e 's/\# \(DISABLE_AUTO_UPDATE="true"\)/\1/' \
      $template