diff --git a/src/simpleNbox.cpp b/src/simpleNbox.cpp
index 9e6314c51..b14fc3123 100644
--- a/src/simpleNbox.cpp
+++ b/src/simpleNbox.cpp
@@ -91,6 +91,7 @@ void SimpleNbox::init( Core* coreptr ) {
     core->registerInput(D_F_LUCV, getComponentName());
     core->registerInput(D_F_LUCD, getComponentName());
     core->registerInput(D_CA_CONSTRAIN, getComponentName());
+    core->registerInput(D_RF_T_ALBEDO, getComponentName());
 }
 
 //------------------------------------------------------------------------------