diff --git a/src/Utilities/Idm/mf6blockfile/IdmMf6File.f90 b/src/Utilities/Idm/mf6blockfile/IdmMf6File.f90
index af09f48304c..a2826f4ca0c 100644
--- a/src/Utilities/Idm/mf6blockfile/IdmMf6File.f90
+++ b/src/Utilities/Idm/mf6blockfile/IdmMf6File.f90
@@ -249,9 +249,6 @@ subroutine dynamic_set(this, parser)
     ! -- set the parser
     this%parser => parser
     !
-    ! -- read first iper
-    call this%read_ionper()
-    !
     ! -- return
     return
   end subroutine dynamic_set
@@ -261,6 +258,9 @@ end subroutine dynamic_set
   subroutine dynamic_df(this)
     class(Mf6FileDynamicPkgLoadType), intent(inout) :: this
     !
+    ! -- read first iper
+    call this%read_ionper()
+    !
     call this%block_loader%df()
     !
     ! -- return