diff --git a/packages/uikit/src/components/Overlay/Overlay.tsx b/packages/uikit/src/components/Overlay/Overlay.tsx
index 08c4f2fbf971c..eff1125078a74 100644
--- a/packages/uikit/src/components/Overlay/Overlay.tsx
+++ b/packages/uikit/src/components/Overlay/Overlay.tsx
@@ -39,16 +39,20 @@ const StyledOverlay = styled(Box)<{ isUnmounting?: boolean }>`
 
 const BodyLock = () => {
   useEffect(() => {
-    document.body.style.cssText = `
+    if (document?.body?.style) {
+      document.body.style.cssText = `
       overflow: hidden;
     `;
-    document.body.style.overflow = "hidden";
-    return () => {
-      document.body.style.cssText = `
+      document.body.style.overflow = "hidden";
+      return () => {
+        document.body.style.cssText = `
         overflow: visible;
         overflow: overlay;
       `;
-    };
+      };
+    }
+
+    return undefined;
   }, []);
 
   return null;