From 5f41447158d38a8edade8668018ab51886665731 Mon Sep 17 00:00:00 2001
From: Mike Cao <mike@mikecao.com>
Date: Wed, 28 Apr 2021 02:12:17 -0700
Subject: [PATCH] Fix issue with server build.

---
 hooks/useTheme.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/hooks/useTheme.js b/hooks/useTheme.js
index 46114d43..1231e283 100644
--- a/hooks/useTheme.js
+++ b/hooks/useTheme.js
@@ -5,7 +5,12 @@ import { THEME_CONFIG } from 'lib/constants';
 import { useEffect } from 'react';
 
 export default function useTheme() {
-  const defaultTheme = window?.matchMedia('prefers-color-scheme: dark')?.matches ? 'dark' : 'light';
+  const defaultTheme =
+    typeof window !== undefined
+      ? window?.matchMedia('prefers-color-scheme: dark')?.matches
+        ? 'dark'
+        : 'light'
+      : 'light';
   const theme = useSelector(state => state.app.theme || getItem(THEME_CONFIG) || defaultTheme);
   const dispatch = useDispatch();