diff --git a/src/managers/KeybindManager.cpp b/src/managers/KeybindManager.cpp
index 2b99ce97..823e2d2e 100644
--- a/src/managers/KeybindManager.cpp
+++ b/src/managers/KeybindManager.cpp
@@ -2333,8 +2333,16 @@ void CKeybindManager::pinActive(std::string args) {
     if (!PWINDOW->m_bIsFloating || PWINDOW->m_bIsFullscreen)
         return;
 
-    PWINDOW->m_bPinned    = !PWINDOW->m_bPinned;
-    PWINDOW->m_pWorkspace = g_pCompositor->getMonitorFromID(PWINDOW->m_iMonitorID)->activeWorkspace;
+    PWINDOW->m_bPinned = !PWINDOW->m_bPinned;
+
+    const auto PMONITOR = g_pCompositor->getMonitorFromID(PWINDOW->m_iMonitorID);
+
+    if (!PMONITOR) {
+        Debug::log(ERR, "pin: monitor not found");
+        return;
+    }
+
+    PWINDOW->m_pWorkspace = PMONITOR->activeWorkspace;
 
     PWINDOW->updateDynamicRules();
     g_pCompositor->updateWindowAnimatedDecorationValues(PWINDOW);