diff --git a/src/ocean/LibFeatures.d b/src/ocean/LibFeatures.d
index 07196f498..0cfbb06c1 100644
--- a/src/ocean/LibFeatures.d
+++ b/src/ocean/LibFeatures.d
@@ -17,6 +17,7 @@
 
 module ocean.LibFeatures;
 
+const has_features_4_0  = true;
 const has_features_3_7  = true;
 const has_features_3_6  = true;
 const has_features_3_5  = true;