diff --git a/src/tests/integration/pde_solvers/coarrayHeatSimplified/global_field.f90 b/src/tests/integration/pde_solvers/coarrayHeatSimplified/global_field.f90
index 037471c5..dcbae244 100644
--- a/src/tests/integration/pde_solvers/coarrayHeatSimplified/global_field.f90
+++ b/src/tests/integration/pde_solvers/coarrayHeatSimplified/global_field.f90
@@ -24,8 +24,8 @@
 ! ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 ! (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 !
-module global_field_module
-  use local_field_module, only : local_field
+module chs_global_field_module
+  use chs_local_field_module, only : local_field
   implicit none
   private
   public :: global_field
diff --git a/src/tests/integration/pde_solvers/coarrayHeatSimplified/local_field.f90 b/src/tests/integration/pde_solvers/coarrayHeatSimplified/local_field.f90
index 204f73a2..e77d9aa5 100644
--- a/src/tests/integration/pde_solvers/coarrayHeatSimplified/local_field.f90
+++ b/src/tests/integration/pde_solvers/coarrayHeatSimplified/local_field.f90
@@ -24,7 +24,7 @@
 ! ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 ! (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 !
-module local_field_module
+module chs_local_field_module
   implicit none
   private
   public :: local_field
diff --git a/src/tests/integration/pde_solvers/coarrayHeatSimplified/main.f90 b/src/tests/integration/pde_solvers/coarrayHeatSimplified/main.f90
index ee77ab6d..c9e47f5e 100644
--- a/src/tests/integration/pde_solvers/coarrayHeatSimplified/main.f90
+++ b/src/tests/integration/pde_solvers/coarrayHeatSimplified/main.f90
@@ -27,7 +27,7 @@
 
 program main
   use IEEE_arithmetic, only : IEEE_is_NaN
-  use global_field_module, only : global_field
+  use chs_global_field_module, only : global_field
   implicit none
   type(global_field) :: T,laplacian_T,T_half
   real, parameter :: alpha=1.,dt=0.0001,final_time=1.,tolerance=1.E-3