1 files changed, 6 insertions, 4 deletions
diff --git a/src/projections/ccon.cpp b/src/projections/ccon.cpp
index 7b3b7105..5f58d536 100644
--- a/src/projections/ccon.cpp
+++ b/src/projections/ccon.cpp
@@ -84,16 +84,18 @@ PJ *PROJECTION(ccon) {
 
     struct pj_opaque *Q = static_cast<struct pj_opaque*>(calloc (1, sizeof (struct pj_opaque)));
     if (nullptr==Q)
-        return pj_default_destructor (P, ENOMEM);
+        return pj_default_destructor (P, PROJ_ERR_INVALID_OP /*ENOMEM*/);
     P->opaque = Q;
     P->destructor = destructor;
 
     Q->phi1 = pj_param(P->ctx, P->params, "rlat_1").f;
     if (fabs(Q->phi1) < EPS10)
-        return destructor (P, PJD_ERR_LAT1_IS_ZERO);
-
+    {
+        proj_log_error(P, _("Invalid value for lat_1: |lat_1| should be > 0"));
+        return destructor(P, PROJ_ERR_INVALID_OP_ILLEGAL_ARG_VALUE);
+    }
     if (!(Q->en = pj_enfn(P->es)))
-        return destructor(P, ENOMEM);
+        return destructor(P, PROJ_ERR_INVALID_OP /*ENOMEM*/);
 
     Q->sinphi1 = sin(Q->phi1);
     Q->cosphi1 = cos(Q->phi1);