diff --git a/modules/util/viirs_l1b_l2.py b/modules/util/viirs_l1b_l2.py
index bbe274b07efb77f6ef48e2e215d00fe0ef18cb0a..6956abe00cebf007d0171e94122a4b4ccfd2da36 100644
--- a/modules/util/viirs_l1b_l2.py
+++ b/modules/util/viirs_l1b_l2.py
@@ -91,7 +91,7 @@ def process_cld_prob(grd_k):
 def process_cld_opd(grd_k):
     keep = np.invert(np.isnan(grd_k))
     num_keep = np.sum(keep)
-    keep_cld = np.where(keep, np.logical_and(0.1 < grd_k), False)
+    keep_cld = np.where(keep, (0.1 < grd_k), False)
     frac_cld = np.sum(keep_cld)/num_keep
     if not (0.50 < frac_cld < 0.85):
         return None