diff --git a/web/src/hooks/use-history-back.ts b/web/src/hooks/use-history-back.ts
index ee04b7531..764312c7b 100644
--- a/web/src/hooks/use-history-back.ts
+++ b/web/src/hooks/use-history-back.ts
@@ -17,6 +17,7 @@ export function useHistoryBack({
 }: UseHistoryBackOptions): void {
   const historyPushedRef = React.useRef(false);
   const closedByBackRef = React.useRef(false);
+  const urlWhenOpenedRef = React.useRef<string | null>(null);
 
   // Keep onClose in a ref to avoid effect re-runs that cause multiple history pushes
   const onCloseRef = React.useRef(onClose);
@@ -30,6 +31,9 @@ export function useHistoryBack({
     if (open) {
       // Only push history state if we haven't already (prevents duplicates in strict mode)
       if (!historyPushedRef.current) {
+        // Store the current URL (pathname + search, without hash) before pushing history state
+        urlWhenOpenedRef.current =
+          window.location.pathname + window.location.search;
         window.history.pushState({ overlayOpen: true }, "");
         historyPushedRef.current = true;
       }
@@ -37,6 +41,7 @@ export function useHistoryBack({
       const handlePopState = () => {
         closedByBackRef.current = true;
         historyPushedRef.current = false;
+        urlWhenOpenedRef.current = null;
         onCloseRef.current();
       };
 
@@ -48,10 +53,22 @@ export function useHistoryBack({
     } else {
       // Overlay is closing - clean up history if we pushed and it wasn't via back button
       if (historyPushedRef.current && !closedByBackRef.current) {
-        window.history.back();
+        const currentUrl = window.location.pathname + window.location.search;
+        const urlWhenOpened = urlWhenOpenedRef.current;
+
+        // If the URL has changed (e.g., filters were applied via search params),
+        // don't go back as it would undo the filter update.
+        // The history entry we pushed will remain, but that's acceptable compared
+        // to losing the user's filter changes.
+        if (!urlWhenOpened || currentUrl === urlWhenOpened) {
+          // URL hasn't changed, safe to go back and remove our history entry
+          window.history.back();
+        }
+        // If URL changed, we skip history.back() to preserve the filter updates
       }
       historyPushedRef.current = false;
       closedByBackRef.current = false;
+      urlWhenOpenedRef.current = null;
     }
   }, [enabled, open]);
 }