diff --git a/editors/code/package.json b/editors/code/package.json
index 296d6fe8e5a..78f3539e986 100644
--- a/editors/code/package.json
+++ b/editors/code/package.json
@@ -318,7 +318,10 @@
                     "description": "Whether to show function parameter name inlay hints at the call site"
                 },
                 "rust-analyzer.inlayHints.maxLength": {
-                    "type": "integer",
+                    "type": [
+                        "null",
+                        "integer"
+                    ],
                     "default": 20,
                     "minimum": 0,
                     "exclusiveMinimum": true,
diff --git a/editors/code/src/config.ts b/editors/code/src/config.ts
index 2668c9640b1..c3b3ecabfb2 100644
--- a/editors/code/src/config.ts
+++ b/editors/code/src/config.ts
@@ -8,7 +8,7 @@ const RA_LSP_DEBUG = process.env.__RA_LSP_SERVER_DEBUG;
 export interface InlayHintOptions {
     typeHints: boolean;
     parameterHints: boolean;
-    maxLength: number;
+    maxLength: number | null;
 }
 
 export interface CargoWatchOptions {
@@ -160,7 +160,7 @@ export class Config {
         return {
             typeHints: this.cfg.get("inlayHints.typeHints") as boolean,
             parameterHints: this.cfg.get("inlayHints.parameterHints") as boolean,
-            maxLength: this.cfg.get("inlayHints.maxLength") as number,
+            maxLength: this.cfg.get("inlayHints.maxLength") as null | number,
         };
     }
     get excludeGlobs() { return this.cfg.get("excludeGlobs") as string[]; }