diff --git a/modules/icing/util.py b/modules/icing/util.py
index 95c7724ade4b06e6e1f98d6b1e3a2c3b04f070e4..c84e6825f31cb1b84d2f748f62b4c6c178c802c7 100644
--- a/modules/icing/util.py
+++ b/modules/icing/util.py
@@ -1578,12 +1578,14 @@ def run_icing_predict_image_1x1(clvrx_dir='/Users/tomrink/data/clavrx/RadC/', ou
         if (day_night == 'AUTO' or day_night == 'DAY') and num_day_tiles > 0:
 
             varX_std = stdSclr_day.transform(varX_day)
+            varX_std = np.where(np.isnan(varX_std), 0, varX_std)
             probs = day_model.predict_proba(varX_std)
             fd_probs[:] = probs[day_idxs]
 
         if (day_night == 'AUTO' or day_night == 'NIGHT') and num_nght_tiles > 0:
 
             varX_std = stdSclr_nght.transform(varX_ngth)
+            varX_std = np.where(np.isnan(varX_std), 0, varX_std)
             probs = nght_model.predict_proba(varX_std)
             fd_probs[:] = probs[nght_idxs]