diff --git a/hashify-filename/README.md b/hashify-filename/README.md
index a512e85..e040e89 100644
--- a/hashify-filename/README.md
+++ b/hashify-filename/README.md
@@ -1,6 +1,7 @@
 ## Hashify Filename
 
-With this little script you can rename given files to its [MD5](https://en.wikipedia.org/wiki/MD5) hashsum. File extension won't be changed.
+This little script renames given files to its [MD5](https://en.wikipedia.org/wiki/MD5) hashsum. File extension won't be changed.
+This allows duplicate files in the same directory to be easily detected and merged / overwritten.
 
 This script is just a fork of [randomize-filename](../randomize-filename).
 
diff --git a/hashify-filename/hashify-filename.sh b/hashify-filename/hashify-filename.sh
index 054e71b..3e9f8a2 100755
--- a/hashify-filename/hashify-filename.sh
+++ b/hashify-filename/hashify-filename.sh
@@ -38,7 +38,9 @@ function rename() {
             continue
         fi
         filename="$(md5sum $filepath | awk '{print $1}')$ext"
-        mv "$filepath" "$base/$filename"
+        if [ $file != $filename ]; then
+            mv -f "$filepath" "$base/$filename"
+        fi
     done
 }