diff --git a/sources/io.F90 b/sources/io.F90
index 56a9988..72bfbaa 100644
--- a/sources/io.F90
+++ b/sources/io.F90
@@ -1473,6 +1473,7 @@ module io
       else
         nl = -1
       end if
+      if (nl >= lnprocs) nl = -1
 
       if (nl >= 0) then