diff --git a/config-kwin.h.cmake b/config-kwin.h.cmake
index cdd935e609..98cf1da568 100644
--- a/config-kwin.h.cmake
+++ b/config-kwin.h.cmake
@@ -7,6 +7,7 @@
 #define KWIN_INTERNAL_NAME_X11 "${KWIN_INTERNAL_NAME_X11}"
 #define KWIN_CONFIG "${KWIN_NAME}rc"
 #define KWIN_VERSION_STRING "${PROJECT_VERSION}"
+#define XCB_VERSION_STRING "${XCB_VERSION}"
 #define KWIN_KILLER_BIN "${CMAKE_INSTALL_PREFIX}/${LIBEXEC_INSTALL_DIR}/kwin_killer_helper"
 #cmakedefine01 HAVE_WAYLAND
 #cmakedefine01 HAVE_WAYLAND_EGL
diff --git a/workspace.cpp b/workspace.cpp
index 83b7ad036e..7cbe81ebac 100644
--- a/workspace.cpp
+++ b/workspace.cpp
@@ -1331,7 +1331,9 @@ QString Workspace::supportInformation() const
     support.append(QStringLiteral("\n"));
     support.append(QStringLiteral("Qt Version: "));
     support.append(QString::fromUtf8(qVersion()));
-    support.append(QStringLiteral("\n\n"));
+    support.append(QStringLiteral("\n"));
+    support.append(QStringLiteral("Qt compile version: %1\n").arg(QStringLiteral(QT_VERSION_STR)));
+    support.append(QStringLiteral("XCB compile version: %1\n\n").arg(QStringLiteral(XCB_VERSION_STRING)));
     support.append(QStringLiteral("Operation Mode: "));
     switch (kwinApp()->operationMode()) {
     case Application::OperationModeX11: