diff --git a/Source/Core/DolphinQt/MenuBar.cpp b/Source/Core/DolphinQt/MenuBar.cpp
index 453260ea91..60ac3d0b2e 100644
--- a/Source/Core/DolphinQt/MenuBar.cpp
+++ b/Source/Core/DolphinQt/MenuBar.cpp
@@ -136,6 +136,7 @@ void MenuBar::OnEmulationStateChanged(Core::State state)
   m_jit_interpreter_core->setEnabled(running);
   m_jit_block_linking->setEnabled(!running);
   m_jit_disable_cache->setEnabled(!running);
+  m_jit_disable_fastmem->setEnabled(!running);
   m_jit_clear_cache->setEnabled(running);
   m_jit_log_coverage->setEnabled(!running);
   m_jit_search_instruction->setEnabled(running);
@@ -810,6 +811,14 @@ void MenuBar::AddJITMenu()
     ClearCache();
   });
 
+  m_jit_disable_fastmem = m_jit->addAction(tr("Disable Fastmem"));
+  m_jit_disable_fastmem->setCheckable(true);
+  m_jit_disable_fastmem->setChecked(!SConfig::GetInstance().bFastmem);
+  connect(m_jit_disable_fastmem, &QAction::toggled, [this](bool enabled) {
+    SConfig::GetInstance().bFastmem = !enabled;
+    ClearCache();
+  });
+
   m_jit_clear_cache = m_jit->addAction(tr("Clear Cache"), this, &MenuBar::ClearCache);
 
   m_jit->addSeparator();
diff --git a/Source/Core/DolphinQt/MenuBar.h b/Source/Core/DolphinQt/MenuBar.h
index 41811b4a09..b42a661813 100644
--- a/Source/Core/DolphinQt/MenuBar.h
+++ b/Source/Core/DolphinQt/MenuBar.h
@@ -249,6 +249,7 @@ private:
   QAction* m_jit_interpreter_core;
   QAction* m_jit_block_linking;
   QAction* m_jit_disable_cache;
+  QAction* m_jit_disable_fastmem;
   QAction* m_jit_clear_cache;
   QAction* m_jit_log_coverage;
   QAction* m_jit_search_instruction;