diff --git a/types/karma/index.d.ts b/types/karma/index.d.ts
index 9c341412a32f1d6..7a5e4a716e130c8 100644
--- a/types/karma/index.d.ts
+++ b/types/karma/index.d.ts
@@ -14,10 +14,10 @@ import Promise = require('bluebird');
 import https = require('https');
 import { Appender } from 'log4js';
 import { EventEmitter } from 'events';
-import constants = require('./lib/constants');
+import * as karmaConstants from './lib/constants';
+import { VERSION } from './lib/constants';
 
-export { constants };
-export const VERSION: typeof constants.VERSION;
+export { karmaConstants as constants, VERSION };
 /**
  * `start` method is deprecated since 0.13. It will be removed in 0.14.
  * Please use
diff --git a/types/karma/lib/constants.d.ts b/types/karma/lib/constants.d.ts
index dfe1c42b8917ace..8cd14682fba6cd5 100644
--- a/types/karma/lib/constants.d.ts
+++ b/types/karma/lib/constants.d.ts
@@ -1,42 +1,36 @@
-declare const constants: Constants;
+/** The current version of karma */
+export const VERSION: string;
+/** The default port used for the karma server */
+export const DEFAULT_PORT: string | number;
+/** The default hostname used for the karma server */
+export const DEFAULT_HOSTNAME: string;
+/** The default listen address used for the karma server */
+export const DEFAULT_LISTEN_ADDR: string;
+/** The value for disabling logs */
+export const LOG_DISABLE: 'OFF';
+/** The value for the log `error` level */
+export const LOG_ERROR: 'ERROR';
+/** The value for the log `warn` level */
+export const LOG_WARN: 'WARN';
+/** The value for the log `info` level */
+export const LOG_INFO: 'INFO';
+/** The value for the log `debug` level */
+export const LOG_DEBUG: 'DEBUG';
+export const LOG_LOG: 'LOG';
+/** An array of log levels in descending order, i.e. LOG_DISABLE, LOG_ERROR, LOG_WARN, LOG_LOG, LOG_INFO, and LOG_DEBUG */
+export const LOG_PRIORITIES: ['OFF', 'ERROR', 'WARN', 'LOG', 'INFO', 'DEBUG'];
 
-interface Constants {
-    /** The current version of karma */
-    VERSION: string;
-    /** The default port used for the karma server */
-    DEFAULT_PORT: string | number;
-    /** The default hostname used for the karma server */
-    DEFAULT_HOSTNAME: string;
-    /** The default listen address used for the karma server */
-    DEFAULT_LISTEN_ADDR: string;
-    /** The value for disabling logs */
-    LOG_DISABLE: 'OFF';
-    /** The value for the log `error` level */
-    LOG_ERROR: 'ERROR';
-    /** The value for the log `warn` level */
-    LOG_WARN: 'WARN';
-    /** The value for the log `info` level */
-    LOG_INFO: 'INFO';
-    /** The value for the log `debug` level */
-    LOG_DEBUG: 'DEBUG';
-    LOG_LOG: 'LOG';
-    /** An array of log levels in descending order, i.e. LOG_DISABLE, LOG_ERROR, LOG_WARN, LOG_LOG, LOG_INFO, and LOG_DEBUG */
-    LOG_PRIORITIES: ['OFF', 'ERROR', 'WARN', 'LOG', 'INFO', 'DEBUG'];
-
-    /** The default color pattern for log output */
-    COLOR_PATTERN: string;
-    /** The default pattern for log output without color */
-    NO_COLOR_PATTERN: string;
-    /** The default console appender */
-    CONSOLE_APPENDER: {
+/** The default color pattern for log output */
+export const COLOR_PATTERN: string;
+/** The default pattern for log output without color */
+export const NO_COLOR_PATTERN: string;
+/** The default console appender */
+export const CONSOLE_APPENDER: {
+    type: string;
+    layout: {
         type: string;
-        layout: {
-            type: string;
-            pattern: string;
-        };
+        pattern: string;
     };
-    /** The exit code */
-    EXIT_CODE: string;
-}
-
-export = constants;
+};
+/** The exit code */
+export const EXIT_CODE: string;
diff --git a/types/karma/tslint.json b/types/karma/tslint.json
index 3db14f85eaf7b98..e27ae39541c4f31 100644
--- a/types/karma/tslint.json
+++ b/types/karma/tslint.json
@@ -1 +1,11 @@
-{ "extends": "dtslint/dt.json" }
+{
+    "extends": "dtslint/dt.json",
+    "rules": {
+        "no-duplicate-imports": [
+            true,
+            {
+                "allow-namespace-imports": true
+            }
+        ]
+    }
+}