diff --git a/src/pipeline.cc b/src/pipeline.cc
index d26dbf4a..29bce040 100644
--- a/src/pipeline.cc
+++ b/src/pipeline.cc
@@ -291,8 +291,8 @@ class PipelineWorker : public Nan::AsyncWorker {
       if (xshrink > 1 && yshrink > 1 && (xresidual == 1.0 || yresidual == 1.0)) {
         xshrink = xshrink / 2;
         yshrink = yshrink / 2;
-        xresidual = xresidual / 2.0;
-        yresidual = yresidual / 2.0;
+        xresidual = static_cast<double>(xshrink) / xfactor;
+        yresidual = static_cast<double>(yshrink) / yfactor;
       }
 
       // Ensure we're using a device-independent colour space
diff --git a/test/fixtures/expected/resize-diff-shrink-even.jpg b/test/fixtures/expected/resize-diff-shrink-even.jpg
new file mode 100644
index 00000000..a00853c7
Binary files /dev/null and b/test/fixtures/expected/resize-diff-shrink-even.jpg differ
diff --git a/test/fixtures/expected/resize-diff-shrink-odd.jpg b/test/fixtures/expected/resize-diff-shrink-odd.jpg
new file mode 100644
index 00000000..f2f6c570
Binary files /dev/null and b/test/fixtures/expected/resize-diff-shrink-odd.jpg differ
diff --git a/test/unit/resize.js b/test/unit/resize.js
index 4664be78..47958dad 100644
--- a/test/unit/resize.js
+++ b/test/unit/resize.js
@@ -413,14 +413,39 @@ describe('Resize dimensions', function () {
     });
   });
 
-  it('Dimensions that result in differing shrinks on each axis', function () {
-    return sharp(fixtures.inputJpg)
+  it('Dimensions that result in differing even shrinks on each axis', function (done) {
+    sharp(fixtures.inputJpg)
       .resize(645, 399)
-      .toBuffer()
-      .then(function (data) {
-        return sharp(data)
+      .toBuffer(function (err, data, info) {
+        if (err) throw err;
+        assert.strictEqual(645, info.width);
+        assert.strictEqual(399, info.height);
+        sharp(data)
           .resize(150, 100)
-          .toBuffer();
+          .toBuffer(function (err, data, info) {
+            if (err) throw err;
+            assert.strictEqual(150, info.width);
+            assert.strictEqual(100, info.height);
+            fixtures.assertSimilar(fixtures.expected('resize-diff-shrink-even.jpg'), data, done);
+          });
+      });
+  });
+
+  it('Dimensions that result in differing odd shrinks on each axis', function (done) {
+    return sharp(fixtures.inputJpg)
+      .resize(600, 399)
+      .toBuffer(function (err, data, info) {
+        if (err) throw err;
+        assert.strictEqual(600, info.width);
+        assert.strictEqual(399, info.height);
+        sharp(data)
+          .resize(200)
+          .toBuffer(function (err, data, info) {
+            if (err) throw err;
+            assert.strictEqual(200, info.width);
+            assert.strictEqual(133, info.height);
+            fixtures.assertSimilar(fixtures.expected('resize-diff-shrink-odd.jpg'), data, done);
+          });
       });
   });
 });