diff --git a/Code/Source/svFSI/read_files.h b/Code/Source/svFSI/read_files.h
index 23c45b86..d7f56c34 100644
--- a/Code/Source/svFSI/read_files.h
+++ b/Code/Source/svFSI/read_files.h
@@ -47,7 +47,7 @@ namespace read_files_ns {
   using EquationNdop = std::array<int, 4>;
   using EquationOutputs = std::array<consts::OutputType, maxOutput>;
   using EquationPhys = std::vector<consts::EquationType>;
-  using EquationProps = std::array<std::array<consts::PhysicalProperyType, consts::maxNProp>, 10>;
+  using EquationProps = std::array<std::array<consts::PhysicalProperyType, 10>, consts::maxNProp>;
 
   void face_match(ComMod& com_mod, faceType& lFa, faceType& gFa, Vector<int>& ptr);