diff --git a/src/expectation/it.ts b/src/expectation/it.ts
index c2f3c09..0678864 100644
--- a/src/expectation/it.ts
+++ b/src/expectation/it.ts
@@ -283,6 +283,7 @@ const willCapture = <T = unknown>(
       return true;
     },
     toJSON: () => name ?? 'captures',
+    getDiff: (actual) => ({ actual, expected: actual }),
     get value(): T | undefined {
       return capturedValue;
     },
diff --git a/src/expectation/matcher.spec.ts b/src/expectation/matcher.spec.ts
index 9d312db..c39281f 100644
--- a/src/expectation/matcher.spec.ts
+++ b/src/expectation/matcher.spec.ts
@@ -626,5 +626,17 @@ describe('It', () => {
       expect(It.willCapture().toJSON()).toEqual('captures');
       expect(It.willCapture('custom').toJSON()).toEqual('custom');
     });
+
+    it('should print diff', () => {
+      expect(It.willCapture().getDiff('foo')).toEqual({
+        actual: 'foo',
+        expected: 'foo',
+      });
+
+      expect(It.willCapture('captor').getDiff('foo')).toEqual({
+        actual: 'foo',
+        expected: 'foo',
+      });
+    });
   });
 });