diff --git a/ftimings/ftimings.F90 b/ftimings/ftimings.F90
index 8ba1b453e4015443ae98ca26228709cc7d495c71..46ce44d937ecedc7be988f789473a2ad49aea57d 100644
--- a/ftimings/ftimings.F90
+++ b/ftimings/ftimings.F90
@@ -1082,6 +1082,8 @@ module ftimings
     logical :: is_sorted_act, print_own, print_threshold
     integer :: unit_act
 
+    nullify(own_node)
+    nullify(threshold_node)
 
     if (present(threshold)) then
       threshold_act = threshold