--- a/src/78_eph/m_sigmaph.F90	2026-08-08 14:03:42.572983559 +0300
+++ b/src/78_eph/m_sigmaph.F90	2026-08-08 14:05:47.275103723 +0300
@@ -701,7 +701,7 @@
  type(hdr_type) :: pot_hdr
  type(phstore_t) :: phstore
  type(u1_cache_t) :: u1c
- type(stern_t) :: stern
+ type(stern_t),target :: stern
  !type(frohl_integrator_t) :: frohl
  character(len=5000) :: msg
  character(len=fnlen) :: sigeph_filepath