diff --git a/modules/util/util.py b/modules/util/util.py
index aef1d655fb76df524b13329929a46dcdf3b89c63..d2371871d9c7b3f780cb0b440395f0dd32326eac 100644
--- a/modules/util/util.py
+++ b/modules/util/util.py
@@ -698,6 +698,7 @@ def write_icing_file(clvrx_str_time, output_dir, preds_dct, probs_dct, x, y, lon
 
     proj_ds = h5f_out.create_dataset('Projection', data=0, dtype='b')
     proj_ds.attrs.create('long_name', data='Himawari Imagery Projection')
+    proj_ds.attrs.create('grid_mapping_name', data='geostationary')
     proj_ds.attrs.create('sweep_angle_axis', data='y')
     proj_ds.attrs.create('units', data='radians')
     proj_ds.attrs.create('semi_major_axis', data=6378.137)