diff --git a/alignmentScript.m b/alignmentScript.m
index d5e5959..5e46e76 100644
--- a/alignmentScript.m
+++ b/alignmentScript.m
@@ -119,8 +119,8 @@
     data_r_save = uint16(binning(data_r(:,:,numFrameList(i)+1:numFrameList(i+1)), binningFactor, 'mean'));
     data_g_save = uint16(binning(data_g(:,:,numFrameList(i)+1:numFrameList(i+1)), binningFactor, 'mean'));
     
-    saveastiff(data_r_save, [outFolder filesep folders(i).name  '_r.tif']);
-    saveastiff(data_g_save, [outFolder filesep folders(i).name  '_g.tif']);
+    saveastiff(uint16(data_r_save), [outFolder filesep folders(i).name  '_r.tif']);
+    saveastiff(uint16(data_g_save), [outFolder filesep folders(i).name  '_g.tif']);
 end
 
 %save big tiff file