diff --git a/src/symba/symba_step.f90 b/src/symba/symba_step.f90
index 2bd6aca36..cd48667af 100644
--- a/src/symba/symba_step.f90
+++ b/src/symba/symba_step.f90
@@ -274,7 +274,7 @@ module subroutine symba_step_reset_system(self, param)
                      tp%levelg(1:ntp) = -1
                      tp%levelm(1:ntp) = -1
                      tp%lmask(1:ntp) = .true.
-                     tp%ldiscard(1:npl) = .false.
+                     tp%ldiscard(1:ntp) = .false.
                      nenc_old = system%pltpenc_list%nenc
                      call system%pltpenc_list%setup(0)
                      call system%pltpenc_list%setup(nenc_old)