diff --git a/src/Window.cpp b/src/Window.cpp
index 1c3d0338..c54ec0dc 100644
--- a/src/Window.cpp
+++ b/src/Window.cpp
@@ -161,6 +161,10 @@ void CWindow::updateWindowDecos() {
 pid_t CWindow::getPID() {
     pid_t PID = -1;
     if (!m_bIsX11) {
+
+        if (!m_bIsMapped)
+            return -1;
+
         wl_client_get_credentials(wl_resource_get_client(m_uSurface.xdg->resource), &PID, nullptr, nullptr);
     } else {
         PID = m_uSurface.xwayland->pid;