diff --git a/include/sdf/Surface.hh b/include/sdf/Surface.hh
index 715b31c62..2403d66bf 100644
--- a/include/sdf/Surface.hh
+++ b/include/sdf/Surface.hh
@@ -17,6 +17,7 @@
 #ifndef SDF_SURFACE_HH_
 #define SDF_SURFACE_HH_
 
+#include <gz/math/Vector3.hh>
 #include <gz/utils/ImplPtr.hh>
 #include "sdf/Element.hh"
 #include "sdf/Types.hh"
diff --git a/src/Surface_TEST.cc b/src/Surface_TEST.cc
index 240b8bbc5..35324e8e6 100644
--- a/src/Surface_TEST.cc
+++ b/src/Surface_TEST.cc
@@ -16,6 +16,7 @@
 */
 
 #include <gtest/gtest.h>
+#include <gz/math/Vector3.hh>
 #include "sdf/Surface.hh"
 
 /////////////////////////////////////////////////