diff --git a/src/gui/plugins/global_illumination_civct/CiVctCascadePrivate.cc b/src/gui/plugins/global_illumination_civct/CiVctCascadePrivate.cc
index de9149b5b1..97a2912208 100644
--- a/src/gui/plugins/global_illumination_civct/CiVctCascadePrivate.cc
+++ b/src/gui/plugins/global_illumination_civct/CiVctCascadePrivate.cc
@@ -21,8 +21,6 @@
 
 #include "GlobalIlluminationCiVct.hh"
 
-#include "gz/rendering/GlobalIlluminationCiVct.hh"
-
 using namespace gz;
 using namespace sim;
 
diff --git a/src/gui/plugins/global_illumination_civct/CiVctCascadePrivate.hh b/src/gui/plugins/global_illumination_civct/CiVctCascadePrivate.hh
index 13f53e45dc..eacde8b043 100644
--- a/src/gui/plugins/global_illumination_civct/CiVctCascadePrivate.hh
+++ b/src/gui/plugins/global_illumination_civct/CiVctCascadePrivate.hh
@@ -26,18 +26,8 @@
 
 #include "Tsa.hh"
 
-namespace gz
-{
-  namespace rendering
-  {
-    inline namespace GZ_SIM_VERSION_NAMESPACE
-    {
-      /// Forward declare the only ptr we need
-      class CiVctCascade;
-      typedef std::shared_ptr<CiVctCascade> CiVctCascadePtr;
-    }  // namespace GZ_SIM_GAZEBO_VERSION_NAMESPACE
-  }  // namespace rendering
-}  // namespace gz
+
+#include "gz/rendering/GlobalIlluminationCiVct.hh"
 
 namespace gz
 {