diff --git a/lib/setSearchParams.ts b/lib/setSearchParams.ts
index 6f1fa0631..0882e14b5 100644
--- a/lib/setSearchParams.ts
+++ b/lib/setSearchParams.ts
@@ -26,10 +26,13 @@ export const setSearchParams = (
 };
 
 export const setManySearchParams = (
-  newParams: { key: string; value: string | string[] | undefined }[]
+  newParams: { key: string; value: string | string[] | undefined }[],
+  setAll?: boolean
 ) => {
   const url = new URL(window.location.href);
-  const params = new URLSearchParams(url.search);
+  const params = setAll
+    ? new URLSearchParams()
+    : new URLSearchParams(url.search);
 
   newParams.forEach(({ key, value }) => {
     if (!value) {
diff --git a/pages/maps.tsx b/pages/maps.tsx
index 628078cb5..e29b4d63a 100644
--- a/pages/maps.tsx
+++ b/pages/maps.tsx
@@ -106,7 +106,7 @@ const MapsGeneratorPage = () => {
     const newStagesSelected = { ...stagesSelected, [stage]: newArray };
 
     setStagesSelected(newStagesSelected);
-    setManySearchParams(poolForUrl(newStagesSelected));
+    setManySearchParams(poolForUrl(newStagesSelected), true);
   };
 
   const generateMaps = () => {
@@ -216,7 +216,7 @@ const MapsGeneratorPage = () => {
                       if (!buttonIsAdd) delete newStagesSelected[stage];
 
                       setStagesSelected(newStagesSelected);
-                      setManySearchParams(poolForUrl(newStagesSelected));
+                      setManySearchParams(poolForUrl(newStagesSelected), true);
                     }}
                   >
                     {buttonIsAdd ? <Trans>All</Trans> : <Trans>Clear</Trans>}