diff --git a/preprocessor/SteadyStateModel.cc b/preprocessor/SteadyStateModel.cc
index c94590cf1..d2a1f856d 100644
--- a/preprocessor/SteadyStateModel.cc
+++ b/preprocessor/SteadyStateModel.cc
@@ -23,7 +23,7 @@
 #include "SteadyStateModel.hh"
 
 SteadyStateModel::SteadyStateModel(SymbolTable &symbol_table_arg, NumericalConstants &num_constants, ExternalFunctionsTable &external_functions_table_arg, const StaticModel &static_model_arg) :
-  DataTree(symbol_table_arg, num_constants, external_functions_table), static_model(static_model_arg)
+  DataTree(symbol_table_arg, num_constants, external_functions_table_arg), static_model(static_model_arg)
 {
 }