diff --git a/lib/internal/webstreams/queuingstrategies.js b/lib/internal/webstreams/queuingstrategies.js
index b6a547bd2b22a6..d8750665bd5e86 100644
--- a/lib/internal/webstreams/queuingstrategies.js
+++ b/lib/internal/webstreams/queuingstrategies.js
@@ -95,7 +95,7 @@ class ByteLengthQueuingStrategy {
   }
 
   [kInspect](depth, options) {
-    return customInspect(depth, options, 'ByteLengthQueuingStrategy', {
+    return customInspect(depth, options, this[kType], {
       highWaterMark: this.highWaterMark,
     });
   }
@@ -151,7 +151,7 @@ class CountQueuingStrategy {
   }
 
   [kInspect](depth, options) {
-    return customInspect(depth, options, 'CountQueuingStrategy', {
+    return customInspect(depth, options, this[kType], {
       highWaterMark: this.highWaterMark,
     });
   }
diff --git a/lib/internal/webstreams/readablestream.js b/lib/internal/webstreams/readablestream.js
index 2d77482a2ea77b..f93ec373283c48 100644
--- a/lib/internal/webstreams/readablestream.js
+++ b/lib/internal/webstreams/readablestream.js
@@ -495,7 +495,7 @@ class ReadableStream {
   }
 
   [kInspect](depth, options) {
-    return customInspect(depth, options, 'ReadableStream', {
+    return customInspect(depth, options, this[kType], {
       locked: this.locked,
       state: this[kState].state,
     });
@@ -651,7 +651,7 @@ class ReadableStreamBYOBRequest {
   }
 
   [kInspect](depth, options) {
-    return customInspect(depth, options, 'ReadableStreamBYOBRequest', {
+    return customInspect(depth, options, this[kType], {
       view: this.view,
       controller: this[kState].controller,
     });
@@ -797,7 +797,7 @@ class ReadableStreamDefaultReader {
   }
 
   [kInspect](depth, options) {
-    return customInspect(depth, options, 'ReadableStreamDefaultReader', {
+    return customInspect(depth, options, this[kType], {
       stream: this[kState].stream,
       readRequests: this[kState].readRequests.length,
       close: this[kState].close.promise,
@@ -914,7 +914,7 @@ class ReadableStreamBYOBReader {
   }
 
   [kInspect](depth, options) {
-    return customInspect(depth, options, 'ReadableStreamBYOBReader', {
+    return customInspect(depth, options, this[kType], {
       stream: this[kState].stream,
       requestIntoRequests: this[kState].requestIntoRequests.length,
       close: this[kState].close.promise,
@@ -977,10 +977,7 @@ class ReadableStreamDefaultController {
   }
 
   [kInspect](depth, options) {
-    return customInspect(
-      depth,
-      options,
-      'ReadableStreamDefaultController', { });
+    return customInspect(depth, options, this[kType], { });
   }
 }
 
@@ -1109,10 +1106,7 @@ class ReadableByteStreamController {
   }
 
   [kInspect](depth, options) {
-    return customInspect(
-      depth,
-      options,
-      'ReadableByteStreamController', { });
+    return customInspect(depth, options, this[kType], { });
   }
 }
 
diff --git a/lib/internal/webstreams/transformstream.js b/lib/internal/webstreams/transformstream.js
index fd77d52fbff943..745675266f7f1b 100644
--- a/lib/internal/webstreams/transformstream.js
+++ b/lib/internal/webstreams/transformstream.js
@@ -181,7 +181,7 @@ class TransformStream {
   }
 
   [kInspect](depth, options) {
-    return customInspect(depth, options, 'TransformStream', {
+    return customInspect(depth, options, this[kType], {
       readable: this.readable,
       writable: this.writable,
       backpressure: this[kState].backpressure,
@@ -303,7 +303,7 @@ class TransformStreamDefaultController {
   }
 
   [kInspect](depth, options) {
-    return customInspect(depth, options, 'TransformStreamDefaultController', {
+    return customInspect(depth, options, this[kType], {
       stream: this[kState].stream,
     });
   }
diff --git a/lib/internal/webstreams/writablestream.js b/lib/internal/webstreams/writablestream.js
index 798c9ed4c434dd..8e6519820aaf17 100644
--- a/lib/internal/webstreams/writablestream.js
+++ b/lib/internal/webstreams/writablestream.js
@@ -225,7 +225,7 @@ class WritableStream {
   }
 
   [kInspect](depth, options) {
-    return customInspect(depth, options, 'WritableStream', {
+    return customInspect(depth, options, this[kType], {
       locked: this.locked,
       state: this[kState].state,
     });
@@ -459,7 +459,7 @@ class WritableStreamDefaultWriter {
   }
 
   [kInspect](depth, options) {
-    return customInspect(depth, options, 'WritableStreamDefaultWriter', {
+    return customInspect(depth, options, this[kType], {
       stream: this[kState].stream,
       close: this[kState].close.promise,
       ready: this[kState].ready.promise,
@@ -497,12 +497,18 @@ class WritableStreamDefaultController {
     resetQueue(this);
   }
 
+  /**
+   * @type {any}
+   */
   get abortReason() {
     if (!isWritableStreamDefaultController(this))
       throw new ERR_INVALID_THIS('WritableStreamDefaultController');
     return this[kState].abortReason;
   }
 
+  /**
+   * @type {AbortSignal}
+   */
   get signal() {
     if (!isWritableStreamDefaultController(this))
       throw new ERR_INVALID_THIS('WritableStreamDefaultController');
@@ -521,7 +527,7 @@ class WritableStreamDefaultController {
   }
 
   [kInspect](depth, options) {
-    return customInspect(depth, options, 'WritableStreamDefaultController', {
+    return customInspect(depth, options, this[kType], {
       stream: this[kState].stream,
     });
   }