diff --git a/index.d.ts b/index.d.ts
index b42e4c0..e25ac43 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -271,6 +271,6 @@ export interface Chalk {
  * Order doesn't matter, and later styles take precedent in case of a conflict.
  * This simply means that `chalk.red.yellow.green` is equivalent to `chalk.green`.
  */
-declare const chalk: Chalk & { supportsColor: ColorSupport };
+declare const chalk: Chalk & { supportsColor: false | ColorSupport };
 
 export default chalk;
diff --git a/index.js.flow b/index.js.flow
index aac750e..07b0a7f 100644
--- a/index.js.flow
+++ b/index.js.flow
@@ -14,7 +14,7 @@ export type Options = {|
 	level?: Level
 |};
 
-export type ColorSupport = {|
+export type ColorSupport = false | {|
 	level: Level,
 	hasBasic: boolean,
 	has256: boolean,
diff --git a/index.test-d.ts b/index.test-d.ts
index 6cda4da..aa146b4 100644
--- a/index.test-d.ts
+++ b/index.test-d.ts
@@ -2,7 +2,7 @@ import {expectType} from 'tsd-check';
 import chalk, {Level, Chalk, ColorSupport} from '.';
 
 // - Helpers -
-type colorReturn = Chalk & {supportsColor: ColorSupport};
+type colorReturn = Chalk & {supportsColor: false | ColorSupport};
 
 // - Level -
 expectType<number>(Level.None);
@@ -11,9 +11,9 @@ expectType<number>(Level.Ansi256);
 expectType<number>(Level.TrueColor);
 
 // - supportsColor -
-expectType<boolean>(chalk.supportsColor.hasBasic);
-expectType<boolean>(chalk.supportsColor.has256);
-expectType<boolean>(chalk.supportsColor.has16m);
+expectType<boolean>(chalk.supportsColor && chalk.supportsColor.hasBasic);
+expectType<boolean>(chalk.supportsColor && chalk.supportsColor.has256);
+expectType<boolean>(chalk.supportsColor && chalk.supportsColor.has16m);
 
 // - Chalk -
 // -- Constructor --