diff --git a/packages/@react-spectrum/overlays/src/OpenTransition.tsx b/packages/@react-spectrum/overlays/src/OpenTransition.tsx
index 72f3cf80089..5c8f2902082 100644
--- a/packages/@react-spectrum/overlays/src/OpenTransition.tsx
+++ b/packages/@react-spectrum/overlays/src/OpenTransition.tsx
@@ -37,7 +37,7 @@ export function OpenTransition(
   props
 ): JSX.Element | ReactElement<any, string | JSXElementConstructor<any>>[] {
   // Do not apply any transition if in chromatic.
-  if (process.env.CHROMATIC) {
+  if (typeof process !== 'undefined' && process.env.CHROMATIC) {
     return React.Children.map(props.children, child => child && React.cloneElement(child, {isOpen: props.in}));
   }