diff --git a/rpcs3/Emu/FS/vfsDevice.h b/rpcs3/Emu/FS/vfsDevice.h
index d3921a529a..67fc3d5000 100644
--- a/rpcs3/Emu/FS/vfsDevice.h
+++ b/rpcs3/Emu/FS/vfsDevice.h
@@ -12,6 +12,7 @@ class vfsDevice
 public:
 	vfsDevice(const std::string& ps3_path, const std::string& local_path);
 	vfsDevice() {}
+	virtual ~vfsDevice() {}
 
 	virtual vfsFileBase* GetNewFileStream()=0;
 	virtual vfsDirBase* GetNewDirStream()=0;
diff --git a/rpcs3/Gui/KernelExplorer.cpp b/rpcs3/Gui/KernelExplorer.cpp
index e61920c5e6..9f81ed4b85 100644
--- a/rpcs3/Gui/KernelExplorer.cpp
+++ b/rpcs3/Gui/KernelExplorer.cpp
@@ -86,7 +86,7 @@ void KernelExplorer::Update()
 		for (const auto id : Emu.GetIdManager().get_IDs(SYS_SEMAPHORE_OBJECT))
 		{
 			const auto sem = Emu.GetIdManager().get<lv2_sema_t>(id);
-			sprintf(name, "Semaphore: ID = 0x%x '%s', Count = %d, Max Count = %d, Waiters = %lld", id, &name64(sem->name), sem->value.load(), sem->max, sem->sq.size());
+			sprintf(name, "Semaphore: ID = 0x%x '%s', Count = %d, Max Count = %d, Waiters = %#llx", id, &name64(sem->name), sem->value.load(), sem->max, sem->sq.size());
 			m_tree->AppendItem(node, name);
 		}
 	}