diff --git a/editors/code/package.json b/editors/code/package.json
index 269bed0f87..429d63f72a 100644
--- a/editors/code/package.json
+++ b/editors/code/package.json
@@ -312,7 +312,7 @@
         ],
         "colors": [
             {
-                "id": "rust-analyzer.inlayHint",
+                "id": "rust_analyzer.inlayHint",
                 "description": "Color for inlay hints",
                 "defaults": {
                     "dark": "#A0A0A0F0",
diff --git a/editors/code/src/inlay_hints.ts b/editors/code/src/inlay_hints.ts
index 7575cead04..b6eb70168a 100644
--- a/editors/code/src/inlay_hints.ts
+++ b/editors/code/src/inlay_hints.ts
@@ -36,7 +36,7 @@ interface InlayHint {
 
 const typeHintDecorationType = vscode.window.createTextEditorDecorationType({
     after: {
-        color: new vscode.ThemeColor('rust-analyzer.inlayHint'),
+        color: new vscode.ThemeColor('rust_analyzer.inlayHint'),
     },
 });