diff --git a/src/eckit/geometry/Grid.cc b/src/eckit/geometry/Grid.cc
index 465420242..17f8e343a 100644
--- a/src/eckit/geometry/Grid.cc
+++ b/src/eckit/geometry/Grid.cc
@@ -15,6 +15,7 @@
 #include <memory>
 #include <ostream>
 
+#include "eckit/config/Configuration.h"
 #include "eckit/exception/Exceptions.h"
 #include "eckit/geometry/GridConfig.h"
 #include "eckit/log/Log.h"
diff --git a/src/eckit/geometry/Grid.h b/src/eckit/geometry/Grid.h
index 84f2627e6..0b7ab74df 100644
--- a/src/eckit/geometry/Grid.h
+++ b/src/eckit/geometry/Grid.h
@@ -19,7 +19,6 @@
 #include <utility>
 #include <vector>
 
-#include "eckit/config/MappedConfiguration.h"
 #include "eckit/geometry/Area.h"
 #include "eckit/geometry/Configurator.h"
 #include "eckit/geometry/Increments.h"
@@ -32,6 +31,11 @@
 #include "eckit/memory/Factory.h"
 
 
+namespace eckit {
+class Configuration;
+}
+
+
 namespace eckit::geometry {