diff --git a/src/backends/x11/standalone/x11_standalone_egl_backend.cpp b/src/backends/x11/standalone/x11_standalone_egl_backend.cpp
index 86cf69baee..5b30466dd0 100644
--- a/src/backends/x11/standalone/x11_standalone_egl_backend.cpp
+++ b/src/backends/x11/standalone/x11_standalone_egl_backend.cpp
@@ -82,6 +82,8 @@ EglBackend::~EglBackend()
     // if the render backend is about to be destroyed.
     RenderLoopPrivate::get(m_backend->renderLoop())->invalidate();
 
+    m_query.reset();
+
     if (isFailed() && m_overlayWindow) {
         m_overlayWindow->destroy();
     }
diff --git a/src/backends/x11/standalone/x11_standalone_glx_backend.cpp b/src/backends/x11/standalone/x11_standalone_glx_backend.cpp
index b8081a8b48..efae3b38a8 100644
--- a/src/backends/x11/standalone/x11_standalone_glx_backend.cpp
+++ b/src/backends/x11/standalone/x11_standalone_glx_backend.cpp
@@ -153,6 +153,8 @@ GlxBackend::~GlxBackend()
     // if the render backend is about to be destroyed.
     RenderLoopPrivate::get(m_backend->renderLoop())->invalidate();
 
+    m_query.reset();
+
     if (isFailed()) {
         m_overlayWindow->destroy();
     }