diff --git a/src/frontend/src/contexts/tabsContext.tsx b/src/frontend/src/contexts/tabsContext.tsx
index 196a24707..3c24fda15 100644
--- a/src/frontend/src/contexts/tabsContext.tsx
+++ b/src/frontend/src/contexts/tabsContext.tsx
@@ -316,7 +316,7 @@ export function TabsProvider({ children }: { children: ReactNode }) {
    * The resulting JSON object is passed to the addFlow function.
    */
   async function uploadFlow(
-    newProject?: boolean,
+    newProject: boolean,
     file?: File
   ): Promise<String | undefined> {
     let id;
@@ -486,7 +486,7 @@ export function TabsProvider({ children }: { children: ReactNode }) {
   }
 
   const addFlow = async (
-    newProject?: Boolean,
+    newProject: Boolean,
     flow?: FlowType
   ): Promise<String | undefined> => {
     if (newProject) {
diff --git a/src/frontend/src/pages/FlowPage/components/extraSidebarComponent/index.tsx b/src/frontend/src/pages/FlowPage/components/extraSidebarComponent/index.tsx
index 8ea74390a..fed9726ea 100644
--- a/src/frontend/src/pages/FlowPage/components/extraSidebarComponent/index.tsx
+++ b/src/frontend/src/pages/FlowPage/components/extraSidebarComponent/index.tsx
@@ -77,7 +77,7 @@ export default function ExtraSidebar(): JSX.Element {
             <button
               className="extra-side-bar-buttons"
               onClick={() => {
-                uploadFlow();
+                uploadFlow(false);
               }}
             >
               <IconComponent name="FileUp" className="side-bar-button-size " />
diff --git a/src/frontend/src/types/tabs/index.ts b/src/frontend/src/types/tabs/index.ts
index 3eae14925..2c133fa6b 100644
--- a/src/frontend/src/types/tabs/index.ts
+++ b/src/frontend/src/types/tabs/index.ts
@@ -24,7 +24,7 @@ export type TabsContextType = {
   uploadFlows: () => void;
   isBuilt: boolean;
   setIsBuilt: (state: boolean) => void;
-  uploadFlow: (newFlow?: boolean, file?: File) => Promise<String | undefined>;
+  uploadFlow: (newFlow: boolean, file?: File) => Promise<String | undefined>;
   hardReset: () => void;
   getNodeId: (nodeType: string) => string;
   tabsState: TabsState;