diff --git a/src/stepon.F90 b/src/stepon.F90
index 89c61ab77d6e09fe07e1400011d220d7b668e86b..71ad932a0bec6ed56a393040909c74fe3dab66cf 100644
--- a/src/stepon.F90
+++ b/src/stepon.F90
@@ -8,7 +8,7 @@ SUBROUTINE stepon
    use mpi,                   ONLY: MPI_COMM_WORLD
    USE time_integration,      ONLY: ntimelevel
    USE prec_const,            ONLY: xp
-   USE DLRA,                  ONLY: test_SVD
+   USE DLRA,                  ONLY: test_svd
    IMPLICIT NONE
 
    INTEGER :: num_step, ierr
@@ -57,7 +57,9 @@ SUBROUTINE stepon
 
       !! TEST SINGULAR VALUE DECOMPOSITION
       ! CALL filter_singular_value_ky_pj(nsv,moments)
-      ! CALL test_SVD
+#ifdef TEST_SVD
+      CALL test_svd
+#endif
       
       IF( nlend ) EXIT ! exit do loop