diff --git a/gtsam/geometry/tests/testEvent.cpp b/gtsam/geometry/tests/testEvent.cpp
index 25a05793d..07c24a12c 100644
--- a/gtsam/geometry/tests/testEvent.cpp
+++ b/gtsam/geometry/tests/testEvent.cpp
@@ -19,7 +19,7 @@
 
 #include <gtsam/base/numericalDerivative.h>
 #include <gtsam/nonlinear/Expression.h>
-#include <gtsam_unstable/geometry/Event.h>
+#include <gtsam/geometry/Event.h>
 
 #include <CppUnitLite/TestHarness.h>