diff --git a/src/argos/argos_prepare_wrttop.F b/src/argos/argos_prepare_wrttop.F
index 2982c302fb..4a0c412dd0 100644
--- a/src/argos/argos_prepare_wrttop.F
+++ b/src/argos/argos_prepare_wrttop.F
@@ -187,6 +187,7 @@ c
 !     For most purposes, it is more useful to use the environment variable
 !     LOGNAME to find out who the user is. This is more flexible precisely
 !     because the user can set LOGNAME arbitrarily.
+      call util_getenv('LOGNAME',user)
 #else
       call getlog(user)
 #endif
diff --git a/src/argos/argos_space_wtrst.F b/src/argos/argos_space_wtrst.F
index 23f7f60ad9..6a732bbd07 100644
--- a/src/argos/argos_space_wtrst.F
+++ b/src/argos/argos_space_wtrst.F
@@ -44,6 +44,7 @@ c
 !     For most purposes, it is more useful to use the environment variable
 !     LOGNAME to find out who the user is. This is more flexible precisely
 !     because the user can set LOGNAME arbitrarily.
+      call util_getenv('LOGNAME',user)
 #else
       call getlog(user)
 #endif