diff --git a/test/integration/deprecated_TEST.cc b/test/integration/deprecated_TEST.cc
index c665bb4891..8dabdcefc3 100644
--- a/test/integration/deprecated_TEST.cc
+++ b/test/integration/deprecated_TEST.cc
@@ -17,7 +17,7 @@
 
 #include <gtest/gtest.h>
 
-#include <ignition/sim/System.hh>
+#include <ignition/gazebo/System.hh>
 #include <ignition/utils/SuppressWarning.hh>
 
 IGN_UTILS_WARN_IGNORE__DEPRECATED_DECLARATION
@@ -26,7 +26,7 @@ IGN_UTILS_WARN_IGNORE__DEPRECATED_DECLARATION
 // Make sure the ignition namespace still works
 TEST(Deprecated, IgnitionNamespace)
 {
-  ignition::sim::System system;
+  ignition::gazebo::System system;
 }
 
 #undef SUPPRESS_IGNITION_HEADER_DEPRECATION