diff --git a/backends/mpi/mpi_model.rb b/backends/mpi/mpi_model.rb
index 3b181dcb..c8f3cc56 100644
--- a/backends/mpi/mpi_model.rb
+++ b/backends/mpi/mpi_model.rb
@@ -22,37 +22,37 @@
 mpi_funcs_e = $mpi_api['functions']
 
 INIT_FUNCTIONS = /
-  \b(?:MPI_Init|
-  MPI_Init_thread|
-  MPI_Initialized|
-  MPI_Finalized|
-  MPI_Get_version|
-  MPI_Get_library_version|
-  MPI_Info_create|
-  MPI_Info_create_env|
-  MPI_Info_set|
-  MPI_Info_delete|
-  MPI_Info_get_string|
-  MPI_Info_get_nkeys|
-  MPI_Info_get_nthkey|
-  MPI_Info_dup|
-  MPI_Info_free|
-  MPI_Info_f2c|
-  MPI_Info_c2f|
-  MPI_Session_create_errhandler|
-  MPI_Session_call_errhandler|
-  MPI_Errhandler_free|
-  MPI_Errhandler_f2c|
-  MPI_Errhandler_c2f|
-  MPI_Error_string|
-  MPI_Error_class|
-  MPI_Add_error_class|
-  MPI_Remove_error_class|
-  MPI_Add_error_code|
-  MPI_Remove_error_code|
-  MPI_Add_error_string|
-  MPI_Remove_error_string|
-  MPI_T_init_thread)\b
+  \b(?:P?MPI_Init|
+  P?MPI_Init_thread|
+  P?MPI_Initialized|
+  P?MPI_Finalized|
+  P?MPI_Get_version|
+  P?MPI_Get_library_version|
+  P?MPI_Info_create|
+  P?MPI_Info_create_env|
+  P?MPI_Info_set|
+  P?MPI_Info_delete|
+  P?MPI_Info_get_string|
+  P?MPI_Info_get_nkeys|
+  P?MPI_Info_get_nthkey|
+  P?MPI_Info_dup|
+  P?MPI_Info_free|
+  P?MPI_Info_f2c|
+  P?MPI_Info_c2f|
+  P?MPI_Session_create_errhandler|
+  P?MPI_Session_call_errhandler|
+  P?MPI_Errhandler_free|
+  P?MPI_Errhandler_f2c|
+  P?MPI_Errhandler_c2f|
+  P?MPI_Error_string|
+  P?MPI_Error_class|
+  P?MPI_Add_error_class|
+  P?MPI_Remove_error_class|
+  P?MPI_Add_error_code|
+  P?MPI_Remove_error_code|
+  P?MPI_Add_error_string|
+  P?MPI_Remove_error_string|
+  P?MPI_T_init_thread)\b
 /ix
 
 $mpi_meta_parameters = YAML.load_file(File.join(SRC_DIR, 'mpi_meta_parameters.yaml'))