diff --git a/src/backend/electron/main.ts b/src/backend/electron/main.ts
index c8da2eac37..2a810609b8 100644
--- a/src/backend/electron/main.ts
+++ b/src/backend/electron/main.ts
@@ -1032,7 +1032,6 @@ app.on("second-instance", async (_event, _argv, _workDir, rawData) => {
     log.info("Second instance launched with vvproj file");
     ipcMainSendProxy.LOAD_PROJECT_FILE(win, {
       filePath: data.filePath,
-      confirm: true,
     });
   }
   if (win) {
diff --git a/src/plugins/ipcMessageReceiverPlugin.ts b/src/plugins/ipcMessageReceiverPlugin.ts
index 41d7df00f8..1ae8393ca6 100644
--- a/src/plugins/ipcMessageReceiverPlugin.ts
+++ b/src/plugins/ipcMessageReceiverPlugin.ts
@@ -9,8 +9,8 @@ export const ipcMessageReceiver: Plugin = {
     options: { store: Store<State, AllGetters, AllActions, AllMutations> },
   ) => {
     window.backend.onReceivedIPCMsg({
-      LOAD_PROJECT_FILE: (_, { filePath, confirm } = {}) =>
-        void options.store.actions.LOAD_PROJECT_FILE({ filePath, confirm }),
+      LOAD_PROJECT_FILE: (_, { filePath } = {}) =>
+        void options.store.actions.LOAD_PROJECT_FILE({ filePath }),
 
       DETECT_MAXIMIZED: () => options.store.actions.DETECT_MAXIMIZED(),
 
diff --git a/src/store/project.ts b/src/store/project.ts
index ebeb21d0fd..48da368714 100755
--- a/src/store/project.ts
+++ b/src/store/project.ts
@@ -171,7 +171,7 @@ export const projectStore = createPartialStore<ProjectStoreTypes>({
     action: createUILockAction(
       async (
         { actions, mutations, getters },
-        { filePath, confirm }: { filePath?: string; confirm?: boolean },
+        { filePath }: { filePath?: string },
       ) => {
         if (!filePath) {
           // Select and load a project File.
@@ -199,7 +199,7 @@ export const projectStore = createPartialStore<ProjectStoreTypes>({
             projectJson: text,
           });
 
-          if (confirm !== false && getters.IS_EDITED) {
+          if (getters.IS_EDITED) {
             const result = await actions.SAVE_OR_DISCARD_PROJECT_FILE({
               additionalMessage:
                 "プロジェクトをロードすると現在のプロジェクトは破棄されます。",
diff --git a/src/store/type.ts b/src/store/type.ts
index 580165ebf1..fbf3a619e4 100644
--- a/src/store/type.ts
+++ b/src/store/type.ts
@@ -1809,7 +1809,7 @@ export type ProjectStoreTypes = {
   };
 
   LOAD_PROJECT_FILE: {
-    action(payload: { filePath?: string; confirm?: boolean }): boolean;
+    action(payload: { filePath?: string }): boolean;
   };
 
   SAVE_PROJECT_FILE: {
diff --git a/src/type/ipc.ts b/src/type/ipc.ts
index d4c64162fe..d71685f5ac 100644
--- a/src/type/ipc.ts
+++ b/src/type/ipc.ts
@@ -244,7 +244,7 @@ export type IpcIHData = {
  */
 export type IpcSOData = {
   LOAD_PROJECT_FILE: {
-    args: [obj: { filePath?: string; confirm?: boolean }];
+    args: [obj: { filePath?: string }];
     return: void;
   };