2 files changed, 9 insertions, 6 deletions
diff --git a/tvix/cli/src/lib.rs b/tvix/cli/src/lib.rs
index 7686cc2c0fe8..2351da13a771 100644
--- a/tvix/cli/src/lib.rs
+++ b/tvix/cli/src/lib.rs
@@ -1,5 +1,7 @@
-use std::{collections::HashMap, path::PathBuf, rc::Rc};
+use std::path::PathBuf;
+use std::rc::Rc;
 
+use rustc_hash::FxHashMap;
 use smol_str::SmolStr;
 use std::fmt::Write;
 use tracing::{instrument, Span};
@@ -86,7 +88,7 @@ pub fn evaluate(
     path: Option<PathBuf>,
     args: &Args,
     allow_incomplete: AllowIncomplete,
-    env: Option<&HashMap<SmolStr, Value>>,
+    env: Option<&FxHashMap<SmolStr, Value>>,
     globals: Option<Rc<GlobalsMap>>,
     source_map: Option<SourceCode>,
 ) -> Result<EvalResult, IncompleteInput> {
@@ -218,7 +220,7 @@ pub fn interpret(
     args: &Args,
     explain: bool,
     allow_incomplete: AllowIncomplete,
-    env: Option<&HashMap<SmolStr, Value>>,
+    env: Option<&FxHashMap<SmolStr, Value>>,
     globals: Option<Rc<GlobalsMap>>,
     source_map: Option<SourceCode>,
 ) -> Result<InterpretResult, IncompleteInput> {
diff --git a/tvix/cli/src/repl.rs b/tvix/cli/src/repl.rs
index 601b639154a6..e4b499609829 100644
--- a/tvix/cli/src/repl.rs
+++ b/tvix/cli/src/repl.rs
@@ -1,6 +1,7 @@
+use std::path::PathBuf;
 use std::rc::Rc;
-use std::{collections::HashMap, path::PathBuf};
 
+use rustc_hash::FxHashMap;
 use rustyline::{error::ReadlineError, Editor};
 use smol_str::SmolStr;
 use tvix_eval::{GlobalsMap, SourceCode, Value};
@@ -88,7 +89,7 @@ pub struct Repl<'a> {
     multiline_input: Option<String>,
     rl: Editor<()>,
     /// Local variables defined at the top-level in the repl
-    env: HashMap<SmolStr, Value>,
+    env: FxHashMap<SmolStr, Value>,
 
     io_handle: Rc<TvixStoreIO>,
     args: &'a Args,
@@ -102,7 +103,7 @@ impl<'a> Repl<'a> {
         Self {
             multiline_input: None,
             rl,
-            env: HashMap::new(),
+            env: FxHashMap::default(),
             io_handle,
             args,
             source_map: Default::default(),