diff --git a/crates/language/src/language_settings.rs b/crates/language/src/language_settings.rs
index ae68ff8f452c4358f5167ab01ea38ac5aa0d7220..3adb8a8156fdf110e65a340f1ded0ca1fde2da58 100644
--- a/crates/language/src/language_settings.rs
+++ b/crates/language/src/language_settings.rs
@@ -244,6 +244,7 @@ pub struct EditPredictionSettings {
 pub enum EditPredictionsMode {
     /// If provider supports it, display inline when holding modifier key (e.g., alt).
     /// Otherwise, eager preview is used.
+    #[serde(alias = "auto")]
     Subtle,
     /// Display inline when there are no language server completions available.
     #[default]