diff --git a/packages/tailwindcss/src/compat/apply-config-to-theme.test.ts b/packages/tailwindcss/src/compat/apply-config-to-theme.test.ts
index 12f195e94078..d74dec088dbb 100644
--- a/packages/tailwindcss/src/compat/apply-config-to-theme.test.ts
+++ b/packages/tailwindcss/src/compat/apply-config-to-theme.test.ts
@@ -141,7 +141,7 @@ test('config values can be merged into the theme', () => {
   expect(theme.resolve('1/2', ['--width'])).toEqual('60%')
   expect(theme.resolve('0.5', ['--width'])).toEqual('60%')
   expect(theme.resolve('100%', ['--width'])).toEqual('100%')
-  expect(theme.resolve('9xs', ['--container'])).toEqual('6rem')
+  expect(theme.resolve('9xs', ['--max-width'])).toEqual('6rem')
   expect(theme.resolve('fast', ['--ease'])).toEqual('cubic-bezier(0, 0.55, 0.45, 1)')
 
   expect(theme.get(['--border'])).toEqual(null)
diff --git a/packages/tailwindcss/src/compat/apply-config-to-theme.ts b/packages/tailwindcss/src/compat/apply-config-to-theme.ts
index 885d2d9ba052..eb700be9e935 100644
--- a/packages/tailwindcss/src/compat/apply-config-to-theme.ts
+++ b/packages/tailwindcss/src/compat/apply-config-to-theme.ts
@@ -167,7 +167,7 @@ const OLD_TO_NEW_NAMESPACE: Record<string, string> = {
   fontSize: 'text',
   letterSpacing: 'tracking',
   lineHeight: 'leading',
-  maxWidth: 'container',
+  maxWidth: 'max-width',
   screens: 'breakpoint',
   transitionTimingFunction: 'ease',
 }