diff --git a/maxatac/analyses/average.py b/maxatac/analyses/average.py
index 4352a55..8b4d392 100644
--- a/maxatac/analyses/average.py
+++ b/maxatac/analyses/average.py
@@ -24,7 +24,7 @@ def run_averaging(args):
     4) Loop through each entry in the chromosome sizes dictionary and calculate the average across all inputs
     5) Write the bigwig file
 
-    :param args: bigwig_files, output_dir, name, chromosomes, chromosome_sizes
+    :param args: bigwig_files, output_dir, name, chromosomes, chromosome_sizes, max_zooms
 
     :return: A bigwig file
     """
@@ -60,7 +60,7 @@ def run_averaging(args):
         header = [(x, chromosome_sizes_dictionary[x]) for x in sorted(args.chromosomes)]
 
         # Write the header to the file
-        output_bw.addHeader(header)
+        output_bw.addHeader(header, maxZooms = args.max_zooms)
 
         # TODO Use parallel processing to speed up. Must write chromosomes in same order as header
         # Loop through the chromosomes and average the values across files
@@ -86,7 +86,7 @@ def run_averaging(args):
                 ends=chrom_length,
                 span=1,
                 step=1,
-                values=chrom_vals.tolist()
+                values=chrom_vals.astype(np.float16).tolist()
             )
 
     # Measure time of averaging
@@ -99,4 +99,4 @@ def run_averaging(args):
 
     logging.info("Total averaging time: %d:%d:%d.\n" % (hours, mins, secs))
 
-    logging.info("Results saved to: " + output_bigwig_filename)
\ No newline at end of file
+    logging.info("Results saved to: " + output_bigwig_filename)