diff --git a/flake.nix b/flake.nix
index f70e785..90ea216 100644
--- a/flake.nix
+++ b/flake.nix
@@ -13,7 +13,7 @@
       in
       {
         defaultPackage = naersk-lib.buildPackage {
-          pname = "genealogos";
+          pname = "nixtract";
           src = ./.;
 
           # nixtract uses the reqwest crate to query for narinfo on the substituters.
diff --git a/src/nix/describe_derivation.rs b/src/nix/describe_derivation.rs
index e3d0524..55e4a60 100644
--- a/src/nix/describe_derivation.rs
+++ b/src/nix/describe_derivation.rs
@@ -126,6 +126,7 @@ pub fn describe_derivation(args: &DescribeDerivationArgs) -> Result<DerivationDe
         .arg(format!("lib={}", args.lib.path().to_string_lossy()))
         .args(["--json", "--expr", expr])
         .arg("--impure")
+        .args(["--extra-experimental-features", "flakes nix-command"])
         .envs(env_vars);
 
     // Add --offline if offline is set
diff --git a/src/nix/find_attribute_paths.rs b/src/nix/find_attribute_paths.rs
index 9f184b5..9836c94 100644
--- a/src/nix/find_attribute_paths.rs
+++ b/src/nix/find_attribute_paths.rs
@@ -57,6 +57,7 @@ pub fn find_attribute_paths(
         .arg(format!("lib={}", lib.path().to_string_lossy()))
         .args(["--json", "--expr", expr])
         .arg("--impure")
+        .args(["--extra-experimental-features", "flakes nix-command"])
         .envs(env_vars);
 
     if *offline {
diff --git a/src/nix/substituters.rs b/src/nix/substituters.rs
index 949e4ab..e3fe3cf 100644
--- a/src/nix/substituters.rs
+++ b/src/nix/substituters.rs
@@ -14,6 +14,7 @@ fn from_flake_ref(flake_ref: &str) -> Result<Substituters> {
     let output = std::process::Command::new("nix")
         .args(["eval", "--json", "--impure"])
         .args(["--expr", &expr])
+        .args(["--extra-experimental-features", "flakes nix-command"])
         .output()?;
 
     let stdout = String::from_utf8_lossy(&output.stdout);
@@ -35,6 +36,7 @@ fn from_flake_ref(flake_ref: &str) -> Result<Substituters> {
 fn from_nix_conf() -> Result<Substituters> {
     let output = std::process::Command::new("nix")
         .args(["show-config", "--json"])
+        .args(["--extra-experimental-features", "flakes nix-command"])
         .output()?;
 
     let stdout = String::from_utf8_lossy(&output.stdout);