diff --git a/src/bun.js/ConsoleObject.zig b/src/bun.js/ConsoleObject.zig
index 42705bbad3..166a0f027f 100644
--- a/src/bun.js/ConsoleObject.zig
+++ b/src/bun.js/ConsoleObject.zig
@@ -2717,7 +2717,7 @@ pub const Formatter = struct {
             },
             .Map => {
                 const length_value = try value.get(this.globalThis, "size") orelse jsc.JSValue.jsNumberFromInt32(0);
-                const length = length_value.toInt32();
+                const length = try length_value.coerce(i32, this.globalThis);
 
                 const prev_quote_strings = this.quote_strings;
                 this.quote_strings = true;
@@ -2824,7 +2824,7 @@ pub const Formatter = struct {
             },
             .Set => {
                 const length_value = try value.get(this.globalThis, "size") orelse jsc.JSValue.jsNumberFromInt32(0);
-                const length = length_value.toInt32();
+                const length = try length_value.coerce(i32, this.globalThis);
 
                 const prev_quote_strings = this.quote_strings;
                 this.quote_strings = true;
diff --git a/test/js/bun/util/inspect.test.js b/test/js/bun/util/inspect.test.js
index a28e2c6313..02b3be838c 100644
--- a/test/js/bun/util/inspect.test.js
+++ b/test/js/bun/util/inspect.test.js
@@ -347,6 +347,23 @@ it("inspect", () => {
   expect(Bun.inspect(new Map())).toBe("Map {}");
   expect(Bun.inspect(new Map([["foo", "bar"]]))).toBe('Map(1) {\n  "foo": "bar",\n}');
   expect(Bun.inspect(new Set(["bar"]))).toBe('Set(1) {\n  "bar",\n}');
+
+  // Regression test: Set/Map with overridden size property should not panic
+  const setWithOverriddenSize = new Set();
+  Object.defineProperty(setWithOverriddenSize, "size", {
+    writable: true,
+    enumerable: true,
+    value: Set,
+  });
+  expect(Bun.inspect(setWithOverriddenSize)).toBe("Set {}");
+
+  const mapWithOverriddenSize = new Map();
+  Object.defineProperty(mapWithOverriddenSize, "size", {
+    writable: true,
+    enumerable: true,
+    value: "not a number",
+  });
+  expect(Bun.inspect(mapWithOverriddenSize)).toBe("Map {}");
   expect(Bun.inspect(<div>foo</div>)).toBe("<div>foo</div>");
   expect(Bun.inspect(<div hello>foo</div>)).toBe("<div hello=true>foo</div>");
   expect(Bun.inspect(<div hello={1}>foo</div>)).toBe("<div hello=1>foo</div>");