diff --git a/front/src/components/datasets/DatasetList.tsx b/front/src/components/datasets/DatasetList.tsx
index a816ee6a..7a0d8cd4 100644
--- a/front/src/components/datasets/DatasetList.tsx
+++ b/front/src/components/datasets/DatasetList.tsx
@@ -55,7 +55,7 @@ export default function DatasetList(props: {
 
   return (
     <div className="flex flex-col p-8 space-y-2 w-full">
-      <div className96="flex flex-row space-x-4">
+      <div className="flex flex-row space-x-4">
         <div className="flex-grow">
           <Search
             label="Search"
diff --git a/front/src/components/search/Search.tsx b/front/src/components/search/Search.tsx
index a188654c..171a5c76 100644
--- a/front/src/components/search/Search.tsx
+++ b/front/src/components/search/Search.tsx
@@ -61,7 +61,7 @@ export default function Search<T extends object>({
   });
 
   const onSelectionChange = useCallback(
-    (key: string | number) => {
+    (key: string | number | null) => {
       const option = options.find((option) => getOptionKey(option) === key);
       if (option) {
         onSelect?.(option);
diff --git a/front/src/hooks/spectrogram/useSpectrogram.ts b/front/src/hooks/spectrogram/useSpectrogram.ts
index 3c626cef..d4ace430 100644
--- a/front/src/hooks/spectrogram/useSpectrogram.ts
+++ b/front/src/hooks/spectrogram/useSpectrogram.ts
@@ -47,8 +47,8 @@ export type SpectrogramState = {
 export type SpectrogramControls = {
   reset: () => void;
   zoom: (window: SpectrogramWindow) => void;
-  scale: ({ time = 1, freq = 1 }: { time?: number; freq?: number }) => void;
-  shift({ time = 0, freq = 0 }: { time?: number; freq?: number }): void;
+  scale: ({ time , freq }: { time?: number; freq?: number }) => void;
+  shift({ time , freq }: { time?: number; freq?: number }): void;
   centerOn: ({ time, freq }: { time?: number; freq?: number }) => void;
   setParameters: (parameters: SpectrogramParameters) => void;
   resetParameters: () => void;