diff --git a/sakura_core/dlg/CDlgOpenFile.h b/sakura_core/dlg/CDlgOpenFile.h
index eeb6890e1d..549cd04f7a 100644
--- a/sakura_core/dlg/CDlgOpenFile.h
+++ b/sakura_core/dlg/CDlgOpenFile.h
@@ -99,12 +99,12 @@ class CDlgOpenFile final : public IDlgOpenFile
 	) override;
 
 	//操作
-	inline bool DoModal_GetOpenFileName(WCHAR* pszPath, EFilter eAddFileter = EFITER_TEXT) override;
-	inline bool DoModal_GetSaveFileName(WCHAR* pszPath) override;
-	inline bool DoModalOpenDlg(SLoadInfo* pLoadInfo,
+	bool DoModal_GetOpenFileName(WCHAR* pszPath, EFilter eAddFileter = EFITER_TEXT) override;
+	bool DoModal_GetSaveFileName(WCHAR* pszPath) override;
+	bool DoModalOpenDlg(SLoadInfo* pLoadInfo,
 		std::vector<std::wstring>* pFilenames,
 		bool bOptions = true) override;
-	inline bool DoModalSaveDlg(SSaveInfo*	pSaveInfo, bool bSimpleMode) override;
+	bool DoModalSaveDlg(SSaveInfo*	pSaveInfo, bool bSimpleMode) override;
 
 	// 設定フォルダ相対ファイル選択(共有データ,ini位置依存)
 	static BOOL SelectFile(HWND parent, HWND hwndCtl, const WCHAR* filter,