diff --git a/dotdrop/installer.py b/dotdrop/installer.py
index a08cbc1..d3addad 100644
--- a/dotdrop/installer.py
+++ b/dotdrop/installer.py
@@ -444,7 +444,7 @@ class Installer:
         # fake the output for readability
         if not diff:
             return
-        self.log.log('diff \"{}\" VS \"{}\"'.format(src, dst))
+        self.log.log('diff \"{}\" VS \"{}\"'.format(dst, src))
         self.log.emph(diff)
 
     def _create_dirs(self, directory):
diff --git a/dotdrop/utils.py b/dotdrop/utils.py
index c4b82e2..3da940e 100644
--- a/dotdrop/utils.py
+++ b/dotdrop/utils.py
@@ -72,7 +72,7 @@ def shell(cmd, debug=False):
 
 def diff(src, dst, raw=True, opts='', debug=False):
     """call unix diff to compare two files"""
-    cmd = 'diff -r {} \"{}\" \"{}\"'.format(opts, src, dst)
+    cmd = 'diff -r {} \"{}\" \"{}\"'.format(opts, dst, src)
     _, out = run(shlex.split(cmd), raw=raw, debug=debug)
     return out