diff --git a/src/pages/mod/index.tsx b/src/pages/mod/index.tsx
index dc94295..2edec2d 100644
--- a/src/pages/mod/index.tsx
+++ b/src/pages/mod/index.tsx
@@ -553,6 +553,7 @@ const Body = ({
                       return (
                         <ReactRouterLink
                           className='IBMSMSMBSSCategoriesBoxItem'
+                          key={`category-${i}`}
                           target='_blank'
                           to={{
                             pathname: getGamePageRoute(game),
@@ -563,9 +564,12 @@ const Body = ({
                         </ReactRouterLink>
                       )
                     })
-                    .reduce((prev, curr) => [
+                    .reduce((prev, curr, i) => [
                       prev,
-                      <div className='IBMSMSMBSSCategoriesBoxSeparator'>
+                      <div
+                        key={`separator-${i}`}
+                        className='IBMSMSMBSSCategoriesBoxSeparator'
+                      >
                         <p>&gt;</p>
                       </div>,
                       curr