diff --git a/modules/aeolus/aeolus_amv.py b/modules/aeolus/aeolus_amv.py
index da4db5ee9f2bc22205bf21c95ef28bf644f2e499..4157da7dc74a816683657190d1b77c91eca31019 100644
--- a/modules/aeolus/aeolus_amv.py
+++ b/modules/aeolus/aeolus_amv.py
@@ -1453,7 +1453,7 @@ def match_aeolus_to_clavrx(aeolus_dict, clvrx_files):
             lon = prof[0, 1]
 
             cc, ll = nav.earth_to_lc(lon, lat)
-            if cc < 0:
+            if cc is None or ll is None:
                 continue
 
             # c_rng, l_rng = get_search_box(nav, lon, lat)