diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 13dc0c5..5c19561 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -47,7 +47,7 @@ jobs:
     -
       name: Build
       run: |
-        spack load kokkos
+        spacktivate feelpp-openmpi4-kokkos
         cmake --preset default
         cmake --build --preset default
     -
diff --git a/docs/modules/kokkos/examples/src/CMakeLists.txt b/docs/modules/kokkos/examples/src/CMakeLists.txt
index 6405d69..1634830 100644
--- a/docs/modules/kokkos/examples/src/CMakeLists.txt
+++ b/docs/modules/kokkos/examples/src/CMakeLists.txt
@@ -1,6 +1,5 @@
 cmake_minimum_required(VERSION 3.10)
 
-project(KokkosExample)
 
 option(FEELPP_ENABLE_KOKKOS "Enable Kokkos support" ON)
 set(Kokkos_ENABLE_OPENMP ON )
diff --git a/src/MPI/CMakeLists.txt b/src/MPI/CMakeLists.txt
index e73a7e7..065843f 100644
--- a/src/MPI/CMakeLists.txt
+++ b/src/MPI/CMakeLists.txt
@@ -1,7 +1,7 @@
 
 #project(MPI_bcast)
 
-######## A simple cmakelists.txt file for ... #############  
+######## A simple cmakelists.txt file for ... #############
 
 cmake_minimum_required(VERSION 3.17)
 #set(CMAKE_CXX_STANDARD 14)
@@ -60,4 +60,4 @@ foreach (myfile ${WFOPenMP_SRC})
     #endif()
 endforeach (file ${WFOPenMP_SRC})
 
-########### end ####################################  
+########### end ####################################
diff --git a/src/MPI/MPI_Philosophers.c b/src/MPI/MPI_Philosophers.c
index 1f8a09f..d6f6531 100755
--- a/src/MPI/MPI_Philosophers.c
+++ b/src/MPI/MPI_Philosophers.c
@@ -4,8 +4,8 @@
 
 #define NUM_MESSAGES 3*NUM_PHILOSOPHERS*NUM_DINNERS
 
-const int NUM_DINNERS;
-const int NUM_PHILOSOPHERS;
+int NUM_DINNERS;
+int NUM_PHILOSOPHERS;
 const int NEED_LEFT_CHOPSTICK = 0;
 const int NEED_RIGHT_CHOPSTICK = 1;
 const int RELEASE_CHOPSTICKS = 2;
@@ -16,7 +16,7 @@ void philosopher(int rank)
   int leftChopstick;
   int rightChopstick;
   int dummy;
-  
+
   if(rank == NUM_PHILOSOPHERS)
   {
 
@@ -46,7 +46,7 @@ void philosopher(int rank)
     printf("Philosopher %d is eating meal %d.\n", rank, i);
 
     MPI_Send(&dummy, 1, MPI_INT, 0, RELEASE_CHOPSTICKS, MPI_COMM_WORLD);
-  }  
+  }
 }
 
 void server()
@@ -221,7 +221,7 @@ int main(int argc, char ** argv)
 
   if(argc != 3)
     exit(0);
-  
+
   sscanf(argv[1], "%d", &NUM_PHILOSOPHERS);
   printf("The number of philosophers is %d\n", NUM_PHILOSOPHERS);
   sscanf(argv[2], "%d", &NUM_DINNERS);