diff --git a/rickshaw-run b/rickshaw-run
index 6c0422da..22f4c9a5 100755
--- a/rickshaw-run
+++ b/rickshaw-run
@@ -498,7 +498,7 @@ sub calc_image_md5 {
     $md5->add(join("", @config_analysis_output));
 
     # Second is the hashing contents of files
-    for my $file (@files) {
+    for my $file (sort @files) {
         debug_log(sprintf "calc_image_md5(): adding '%s' to hash\n", $file);
         open(my $fh, $file);
         binmode($fh);