diff --git a/next-themes/src/index.tsx b/next-themes/src/index.tsx
index d02f61b..65ab572 100644
--- a/next-themes/src/index.tsx
+++ b/next-themes/src/index.tsx
@@ -12,7 +12,7 @@ const defaultContext: UseThemeProps = { setTheme: _ => {}, themes: [] }
 
 export const useTheme = () => React.useContext(ThemeContext) ?? defaultContext
 
-export const ThemeProvider = (props: ThemeProviderProps) => {
+export const ThemeProvider = (props: ThemeProviderProps): React.ReactNode => {
   const context = React.useContext(ThemeContext)
 
   // Ignore nested context providers, just passthrough children