diff --git a/src/cli/cli.js b/src/cli/cli.js
index 7d7d4db195..9152129e9b 100644
--- a/src/cli/cli.js
+++ b/src/cli/cli.js
@@ -66,12 +66,12 @@ function error (err) {
 }
 
 async function runTests (argParser) {
-    const opts              = argParser.opts;
-    const port1             = opts.ports && opts.ports[0];
-    const port2             = opts.ports && opts.ports[1];
-    const proxy             = opts.proxy;
-    const proxyBypass       = opts.proxyBypass;
-    const configFile        = opts.configFile;
+    const opts        = argParser.opts;
+    const port1       = opts.ports && opts.ports[0];
+    const port2       = opts.ports && opts.ports[1];
+    const proxy       = opts.proxy;
+    const proxyBypass = opts.proxyBypass;
+    const configFile  = opts.configFile;
 
     log.showSpinner();
 
@@ -90,6 +90,7 @@ async function runTests (argParser) {
         configFile,
         disableHttp2,
         v8Flags,
+        fromCli: true,
     });
 
     const correctedBrowsersAndSources = await correctBrowsersAndSources(argParser, testCafe.configuration);
@@ -126,7 +127,6 @@ async function runTests (argParser) {
 
         failed = await runner.run(runOpts);
     }
-
     finally {
         showMessageOnExit = false;
         await testCafe.close();
@@ -149,10 +149,10 @@ async function listBrowsers (providerName) {
         if (providerName === 'locally-installed')
             console.log(browserNames.join('\n'));
         else
-            console.log(browserNames.map(browserName => `"${providerName}:${browserName}"`).join('\n'));
+            console.log(browserNames.map(browserName => `"${ providerName }:${ browserName }"`).join('\n'));
     }
     else
-        console.log(`"${providerName}"`);
+        console.log(`"${ providerName }"`);
 
     exit(0);
 }
diff --git a/src/configuration/testcafe-configuration.ts b/src/configuration/testcafe-configuration.ts
index 58f9ab702a..733637bdab 100644
--- a/src/configuration/testcafe-configuration.ts
+++ b/src/configuration/testcafe-configuration.ts
@@ -108,12 +108,12 @@ export default class TestCafeConfiguration extends Configuration {
         await this.asyncMergeOptions(options);
     }
 
-    public async asyncMergeOptions (options?: object): Promise<void> {
+    public async asyncMergeOptions (options?: any): Promise<void> {
         options = options || {};
 
         super.mergeOptions(options);
 
-        if (this._options.browsers)
+        if (!options.fromCli && this._options.browsers)
             this._options.browsers.value = await this._getBrowserInfo();
     }
 
diff --git a/test/server/configuration-test.js b/test/server/configuration-test.js
index d4842e7209..2c13874b23 100644
--- a/test/server/configuration-test.js
+++ b/test/server/configuration-test.js
@@ -1,12 +1,12 @@
 /*eslint-disable no-console */
 const { cloneDeep, noop } = require('lodash');
 
-const { expect }    = require('chai');
-const fs            = require('fs');
-const tmp           = require('tmp');
-const { nanoid }    = require('nanoid');
-const del           = require('del');
-const pathUtil      = require('path');
+const { expect } = require('chai');
+const fs         = require('fs');
+const tmp        = require('tmp');
+const { nanoid } = require('nanoid');
+const del        = require('del');
+const pathUtil   = require('path');
 
 const TestCafeConfiguration                   = require('../../lib/configuration/testcafe-configuration');
 const TypeScriptConfiguration                 = require('../../lib/configuration/typescript-configuration');
@@ -858,4 +858,40 @@ describe('TypeScriptConfiguration', function () {
                 });
         });
     });
+    describe('[RG-6618] Incorrect browser is specified in config file when running tests from CLI', () => {
+        let configuration;
+        const customConfigFile = 'custom2.testcaferc.json';
+
+        const options = {
+            'browsers': ['incorrectBrowser'],
+        };
+
+        before(async () => {
+            createJSONConfig(customConfigFile, options);
+        });
+
+        after(async () => {
+            await del(configuration.defaultPaths);
+        });
+
+        it('Should success create configuration with incorrect browser value', () => {
+            configuration = new TestCafeConfiguration(customConfigFile);
+
+            return configuration.init({ fromCli: true })
+                .then(() => {
+                    expect(pathUtil.basename(configuration.filePath)).eql(customConfigFile);
+                    expect(configuration.getOption('browsers')).eql(options.browsers);
+                });
+        });
+
+        it('Should throw an error in case of incorrect browser was passed not from CLI', () => {
+            configuration = new TestCafeConfiguration(customConfigFile);
+
+            return configuration.init().then(() => {
+                throw new Error('Promise should be rejected');
+            }).catch(err => {
+                expect(err.message).eql('Cannot find the browser. "incorrectBrowser" is neither a known browser alias, nor a path to an executable file.');
+            });
+        });
+    });
 });