diff --git a/diag_manager/fms_diag_file_object.F90 b/diag_manager/fms_diag_file_object.F90
index 753e351c0..5f9a2536a 100644
--- a/diag_manager/fms_diag_file_object.F90
+++ b/diag_manager/fms_diag_file_object.F90
@@ -50,7 +50,7 @@ module fms_diag_file_object_mod
 use fms_diag_output_buffer_mod, only: fmsDiagOutputBuffer_type
 use mpp_mod, only: mpp_get_current_pelist, mpp_npes, mpp_root_pe, mpp_pe, mpp_error, FATAL, stdout, &
                    uppercase, lowercase, NOTE
-use platform_mod, only: FMS_FILE_LEN 
+use platform_mod, only: FMS_FILE_LEN
 
 implicit none
 private