diff --git a/client/src/components/app-bar/Input.tsx b/client/src/components/app-bar/Input.tsx
index 810383be..356e901b 100644
--- a/client/src/components/app-bar/Input.tsx
+++ b/client/src/components/app-bar/Input.tsx
@@ -74,7 +74,11 @@ export function Input() {
               }
               break;
             default:
-              setUIState({ ...mapDefaults, map: find(maps, { id: v }) });
+              setUIState({
+                ...mapDefaults,
+                map: find(maps, { id: v }),
+                parameters: {},
+              });
               notify("Solution was cleared because the map changed.");
               break;
           }
diff --git a/client/src/services/SpecimenService.tsx b/client/src/services/SpecimenService.tsx
index 46c4369f..1ddcc5c1 100644
--- a/client/src/services/SpecimenService.tsx
+++ b/client/src/services/SpecimenService.tsx
@@ -45,7 +45,7 @@ async function solve(
 export function SpecimenService() {
   const usingLoadingState = useLoadingState("specimen");
   const notify = useSnackbar();
-  const [{ formats, algorithms }] = useFeatures();
+  const [{ formats }] = useFeatures();
   const [{ algorithm, start, end, parameters }, setUIState] = useUIState();
   const resolve = useConnectionResolver();
   const [connections] = useConnections();