diff --git a/lighthouse-cli/run.ts b/lighthouse-cli/run.ts
index f55c33c43f5f..bacee58fe6f8 100644
--- a/lighthouse-cli/run.ts
+++ b/lighthouse-cli/run.ts
@@ -40,7 +40,10 @@ export function parseChromeFlags(flags: string = '') {
       // Avoid '=true', then reintroduce quotes
       .map(key => {
         if (parsed[key] === true) return `--${key}`;
-        return `--${key}="${parsed[key]}"`;
+        // ChromeLauncher passes flags to Chrome as atomic arguments, so do not double quote
+        // i.e. `lighthouse --chrome-flags="--user-agent='My Agent'"` becomes `chrome "--user-agent=My Agent"`
+        // see https://github.com/GoogleChrome/lighthouse/issues/3744
+        return `--${key}=${parsed[key]}`;
       });
 }
 
diff --git a/lighthouse-cli/test/cli/run-test.js b/lighthouse-cli/test/cli/run-test.js
index 7e6176d85ac7..bca650a20d11 100644
--- a/lighthouse-cli/test/cli/run-test.js
+++ b/lighthouse-cli/test/cli/run-test.js
@@ -51,10 +51,10 @@ describe('Parsing --chrome-flags', () => {
   });
 
   it('returns boolean flags that are false with value', () => {
-    assert.deepStrictEqual(parseChromeFlags('--debug=false'), ['--debug="false"']);
+    assert.deepStrictEqual(parseChromeFlags('--debug=false'), ['--debug=false']);
   });
 
-  it('returns boolean flags that empty when passed undefined', () => {
+  it('returns empty when passed undefined', () => {
     assert.deepStrictEqual(parseChromeFlags(), []);
   });
 
@@ -63,25 +63,25 @@ describe('Parsing --chrome-flags', () => {
   });
 
   it('handles numeric values', () => {
-    assert.deepStrictEqual(parseChromeFlags('--log-level=0'), ['--log-level="0"']);
+    assert.deepStrictEqual(parseChromeFlags('--log-level=0'), ['--log-level=0']);
   });
 
-  it('quotes flag values with spaces in them (#2817)', () => {
+  it('handles flag values with spaces in them (#2817)', () => {
     assert.deepStrictEqual(
       parseChromeFlags('--user-agent="iPhone UA Test"'),
-      ['--user-agent="iPhone UA Test"']
+      ['--user-agent=iPhone UA Test']
     );
 
     assert.deepStrictEqual(
       parseChromeFlags('--host-resolver-rules="MAP www.example.org:443 127.0.0.1:8443"'),
-      ['--host-resolver-rules="MAP www.example.org:443 127.0.0.1:8443"']
+      ['--host-resolver-rules=MAP www.example.org:443 127.0.0.1:8443']
     );
   });
 
   it('returns all flags as provided', () => {
     assert.deepStrictEqual(
       parseChromeFlags('--spaces="1 2 3 4" --debug=false --verbose --more-spaces="9 9 9"'),
-      ['--spaces="1 2 3 4"', '--debug="false"', '--verbose', '--more-spaces="9 9 9"']
+      ['--spaces=1 2 3 4', '--debug=false', '--verbose', '--more-spaces=9 9 9']
     );
   });
 });