diff --git a/__tests__/__snapshots__/snapshotDiff.test.js.snap b/__tests__/__snapshots__/snapshotDiff.test.js.snap
index b3b9d94..db858fa 100644
--- a/__tests__/__snapshots__/snapshotDiff.test.js.snap
+++ b/__tests__/__snapshots__/snapshotDiff.test.js.snap
@@ -134,3 +134,33 @@ exports[`failed optional deps throws with sensible message on missing react-test
 "Failed to load optional module \\"react-test-renderer\\". If you need to compare React elements, please add \\"react-test-renderer\\" to your project's dependencies.
 Cannot find module 'non-existent-module-for-testing' from 'snapshotDiff.test.js'"
 `;
+
+exports[`supports diffing single-line strings 1`] = `
+"Snapshot Diff:
+- First value
++ Second value
+
+- foo
++ bar
+  "
+`;
+
+exports[`supports diffing single-line strings 2`] = `
+"Snapshot Diff:
+- First value
++ Second value
+
+- foo
++ bar
+  "
+`;
+
+exports[`supports diffing single-line strings 3`] = `
+"Snapshot Diff:
+- First value
++ Second value
+
+- foo
++ bar
+  "
+`;
diff --git a/__tests__/snapshotDiff.test.js b/__tests__/snapshotDiff.test.js
index 29ce66b..c64c8b0 100644
--- a/__tests__/snapshotDiff.test.js
+++ b/__tests__/snapshotDiff.test.js
@@ -37,6 +37,10 @@ type Props = {
 
 class Component extends React.Component<Props> {
   render() {
+    const dummySpans = Array(20)
+      .fill(0)
+      .map((_, index) => <span key={String(index)} />);
+
     return (
       <div>
         <span />
@@ -44,76 +48,20 @@ class Component extends React.Component<Props> {
         <span />
         <span>{this.props.test}</span>
         <span>{this.props.test}</span>
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
+        {dummySpans}
         <span>{this.props.test}</span>
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
-        <span />
+        {dummySpans}
       </div>
     );
   }
 }
 
+test('supports diffing single-line strings', () => {
+  expect(snapshotDiff('foo', 'bar')).toMatchSnapshot();
+  expect(snapshotDiff('foo\n', 'bar')).toMatchSnapshot();
+  expect(snapshotDiff('foo', 'bar\n')).toMatchSnapshot();
+});
+
 test('collapses diffs and strips ansi by default', () => {
   expect(snapshotDiff(a, b)).toMatchSnapshot();
 });
diff --git a/src/index.js b/src/index.js
index 840f0a0..fa4503b 100644
--- a/src/index.js
+++ b/src/index.js
@@ -8,6 +8,7 @@ const prettyFormat = require('pretty-format');
 
 const { ReactElement } = prettyFormat.plugins;
 const reactElement = Symbol.for('react.element');
+const MULTILINE_REGEXP = /[\r\n]/;
 
 type Options = {
   expand?: boolean,
@@ -50,6 +51,14 @@ const isReactComponent = (value: any) =>
   value && value.$$typeof === reactElement;
 
 function diffStrings(valueA: any, valueB: any, options: Options) {
+  // jest-diff doesn't support single-line values, but we want to
+  if (typeof valueA === 'string' && !MULTILINE_REGEXP.test(valueA)) {
+    valueA += '\n'; // eslint-disable-line no-param-reassign
+  }
+  if (typeof valueB === 'string' && !MULTILINE_REGEXP.test(valueB)) {
+    valueB += '\n'; // eslint-disable-line no-param-reassign
+  }
+
   return diff(valueA, valueB, {
     expand: options.expand,
     contextLines: options.contextLines,