diff --git a/client/crashpad_client_win.cc b/client/crashpad_client_win.cc
index 79412abc..1f106865 100644
--- a/client/crashpad_client_win.cc
+++ b/client/crashpad_client_win.cc
@@ -461,6 +461,11 @@ void CrashpadClient::DumpWithoutCrash(const CONTEXT& context) {
 
 // static
 void CrashpadClient::DumpAndCrash(EXCEPTION_POINTERS* exception_pointers) {
+  if (g_signal_exception == INVALID_HANDLE_VALUE) {
+    LOG(ERROR) << "haven't called UseHandler()";
+    return;
+  }
+
   UnhandledExceptionHandler(exception_pointers);
 }