diff --git a/pkgs/by-name/ni/nixos-install/nixos-install.sh b/pkgs/by-name/ni/nixos-install/nixos-install.sh
index b428406f95a2f..2a592223a921e 100755
--- a/pkgs/by-name/ni/nixos-install/nixos-install.sh
+++ b/pkgs/by-name/ni/nixos-install/nixos-install.sh
@@ -246,6 +246,8 @@ if [[ -z $noBootLoader ]]; then
     export mountPoint
     NIXOS_INSTALL_BOOTLOADER=1 nixos-enter --root "$mountPoint" -c "$(cat <<'EOF'
       set -e
+      # Clear the cache for executable locations. They were invalidated by the chroot.
+      hash -r
       # Create a bind mount for each of the mount points inside the target file
       # system. This preserves the validity of their absolute paths after changing
       # the root with `nixos-enter`.
diff --git a/pkgs/by-name/ni/nixos-install/package.nix b/pkgs/by-name/ni/nixos-install/package.nix
index fbe75619674ed..7ffc2984ef038 100644
--- a/pkgs/by-name/ni/nixos-install/package.nix
+++ b/pkgs/by-name/ni/nixos-install/package.nix
@@ -7,6 +7,7 @@
   jq,
   nixos-enter,
   util-linuxMinimal,
+  nixosTests,
 }:
 substituteAll {
   name = "nixos-install";
@@ -29,6 +30,8 @@ substituteAll {
     installManPage ${./nixos-install.8}
   '';
 
+  passthru.tests.installer-simpleUefiSystemdBoot = nixosTests.installer.simpleUefiSystemdBoot;
+
   meta = {
     description = "Install bootloader and NixOS";
     homepage = "https://github.com/NixOS/nixpkgs/tree/master/pkgs/by-name/ni/nixos-install";