diff --git a/src/gui/opengl/platform/egl/qeglstreamconvenience_p.h b/src/gui/opengl/platform/egl/qeglstreamconvenience_p.h
index a03f0ff1f0..22e124b279 100644
--- a/src/gui/opengl/platform/egl/qeglstreamconvenience_p.h
+++ b/src/gui/opengl/platform/egl/qeglstreamconvenience_p.h
@@ -149,10 +149,6 @@ typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMCONSUMEROUTPUTEXTPROC) (EGLDisplay
 #define EGL_PLATFORM_X11_KHR              0x31D5
 #endif
 
-#ifndef EGL_PLATFORM_XCB_KHR
-#define EGL_PLATFORM_XCB_KHR              0x31DC
-#endif
-
 #ifndef EGL_NV_stream_attrib
 typedef EGLStreamKHR (EGLAPIENTRYP PFNEGLCREATESTREAMATTRIBNVPROC) (EGLDisplay dpy, const EGLAttrib *attrib_list);
 typedef EGLBoolean (EGLAPIENTRYP PFNEGLSETSTREAMATTRIBNVPROC) (EGLDisplay dpy, EGLStreamKHR stream, EGLenum attribute, EGLAttrib value);
diff --git a/src/plugins/platforms/xcb/gl_integrations/xcb_egl/qxcbeglintegration.cpp b/src/plugins/platforms/xcb/gl_integrations/xcb_egl/qxcbeglintegration.cpp
index 5f07b10f04..f3630d57b9 100644
--- a/src/plugins/platforms/xcb/gl_integrations/xcb_egl/qxcbeglintegration.cpp
+++ b/src/plugins/platforms/xcb/gl_integrations/xcb_egl/qxcbeglintegration.cpp
@@ -67,12 +67,7 @@ bool QXcbEglIntegration::initialize(QXcbConnection *connection)
 
     const char *extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
 
-    if (extensions && (strstr(extensions, "EGL_EXT_platform_xcb") || strstr(extensions, "EGL_MESA_platform_xcb"))) {
-        QEGLStreamConvenience streamFuncs;
-        m_egl_display = streamFuncs.get_platform_display(EGL_PLATFORM_XCB_KHR,
-                                                         reinterpret_cast<void *>(connection->xcb_connection()),
-                                                         nullptr);
-    } else if (extensions && strstr(extensions, "EGL_EXT_platform_x11")) {
+    if (extensions && strstr(extensions, "EGL_EXT_platform_x11")) {
         QEGLStreamConvenience streamFuncs;
         m_egl_display = streamFuncs.get_platform_display(EGL_PLATFORM_X11_KHR,
                                                          xlib_display(),