diff --git a/modules/util/viirs_l1b_l2.py b/modules/util/viirs_l1b_l2.py
index 78fa3d18478e9d8e850fbebce284d1856888f264..cbe60a5dafec08a3951e68cab6bbf98eebbad6a3 100644
--- a/modules/util/viirs_l1b_l2.py
+++ b/modules/util/viirs_l1b_l2.py
@@ -82,7 +82,8 @@ def process_cld_prob(param_s, tile):
     grd_k = tile[k, ].flatten().copy()
     keep = np.invert(np.isnan(grd_k))
     total = np.sum(keep)
-    if total == 0:
+    # if total == 0:
+    if total != grd_k.size:
         return None
 
     grd_k = np.where(np.logical_and(keep, grd_k < 0.5), 0.0, 1.0)