diff --git a/leaky-ships/src/components/Grid.tsx b/leaky-ships/src/components/Grid.tsx
index 20e7df7..81217ea 100644
--- a/leaky-ships/src/components/Grid.tsx
+++ b/leaky-ships/src/components/Grid.tsx
@@ -24,6 +24,7 @@ function Grid() {
     }
     handleResize()
     window.addEventListener("resize", handleResize)
+    onCleanup(() => removeEventListener("resize", handleResize))
   })
 
   createEffect(() => {
diff --git a/leaky-ships/src/components/Grid2.tsx b/leaky-ships/src/components/Grid2.tsx
index ef467a3..f096d56 100644
--- a/leaky-ships/src/components/Grid2.tsx
+++ b/leaky-ships/src/components/Grid2.tsx
@@ -25,6 +25,7 @@ function Grid2() {
     }
     handleResize()
     window.addEventListener("resize", handleResize)
+    onCleanup(() => removeEventListener("resize", handleResize))
   })
 
   createEffect(() => {