diff --git a/dotdrop/dotdrop.py b/dotdrop/dotdrop.py
index 52ea58d..4a7ea1d 100644
--- a/dotdrop/dotdrop.py
+++ b/dotdrop/dotdrop.py
@@ -47,8 +47,9 @@ def cmd_install(o):
     inst = Installer(create=o.create, backup=o.backup,
                      dry=o.dry, safe=o.safe,
                      base=o.dotpath, workdir=o.workdir,
-                     diff=o.installdiff, debug=o.debug,
-                     totemp=tmpdir, showdiff=o.showdiff)
+                     diff=o.install_diff, debug=o.debug,
+                     totemp=tmpdir,
+                     showdiff=o.install_showdiff)
     installed = []
     for dotfile in dotfiles:
         preactions = []
diff --git a/dotdrop/options.py b/dotdrop/options.py
index 5be5534..e22a379 100644
--- a/dotdrop/options.py
+++ b/dotdrop/options.py
@@ -32,13 +32,13 @@ USAGE = """
 {}
 
 Usage:
-  dotdrop install   [-tfndVbD] [-c <path>] [-p <profile>] [<key>...]
-  dotdrop import    [-ldVb]    [-c <path>] [-p <profile>] <path>...
+  dotdrop install   [-VbtfndD] [-c <path>] [-p <profile>] [<key>...]
+  dotdrop import    [-Vbld]    [-c <path>] [-p <profile>] <path>...
   dotdrop compare   [-Vb]      [-c <path>] [-p <profile>]
                                [-o <opts>] [-C <file>...] [-i <pattern>...]
-  dotdrop update    [-fdVbkP]  [-c <path>] [-p <profile>]
+  dotdrop update    [-VbfdkP]  [-c <path>] [-p <profile>]
                                [-i <pattern>...] [<path>...]
-  dotdrop listfiles [-VTb]     [-c <path>] [-p <profile>]
+  dotdrop listfiles [-VbT]     [-c <path>] [-p <profile>]
   dotdrop detail    [-Vb]      [-c <path>] [-p <profile>] [<key>...]
   dotdrop list      [-Vb]      [-c <path>]
   dotdrop --help
@@ -71,7 +71,7 @@ class Options:
 
     def __init__(self, args=None):
         """constructor
-        @args: argument dictionary (if non use sys)
+        @args: argument dictionary (if None use sys)
         """
         self.args = args
         if not args:
@@ -117,8 +117,6 @@ class Options:
         self.dry = self.args['--dry']
         self.profile = self.args['--profile']
         self.safe = not self.args['--force']
-        self.installdiff = not self.args['--nodiff']
-        self.showdiff = self.showdiff or self.args['--showdiff']
         self.link = LinkTypes.NOLINK
         if self.link_by_default:
             self.link = LinkTypes.PARENTS
@@ -135,6 +133,8 @@ class Options:
         # "install" specifics
         self.install_temporary = self.args['--temp']
         self.install_keys = self.args['<key>']
+        self.install_diff = not self.args['--nodiff']
+        self.install_showdiff = self.showdiff or self.args['--showdiff']
         # "compare" specifics
         self.compare_dopts = self.args['--dopts']
         self.compare_focus = self.args['--file']
diff --git a/tests/helpers.py b/tests/helpers.py
index aadf9b8..84649a5 100644
--- a/tests/helpers.py
+++ b/tests/helpers.py
@@ -124,9 +124,9 @@ def load_options(confpath, profile):
     o.dry = False
     o.profile = profile
     o.safe = True
-    o.installdiff = True
+    o.install_diff = True
     o.link = LinkTypes.NOLINK.value
-    o.showdiff = True
+    o.install_showdiff = True
     o.debug = True
     o.dopts = ''
     o.variables = {}
diff --git a/tests/test_install.py b/tests/test_install.py
index b107448..158e413 100644
--- a/tests/test_install.py
+++ b/tests/test_install.py
@@ -184,7 +184,7 @@ exec bspwm
         o = load_options(confpath, profile)
         o.safe = False
         o.debug = True
-        o.showdiff = True
+        o.install_showdiff = True
         o.variables = {}
         cmd_install(o)
 
diff --git a/tests/test_update.py b/tests/test_update.py
index 9701eb5..e77d7ba 100644
--- a/tests/test_update.py
+++ b/tests/test_update.py
@@ -68,6 +68,7 @@ class TestUpdate(unittest.TestCase):
                                       create=self.CONFIG_CREATE)
         self.assertTrue(os.path.exists(confpath))
         o = load_options(confpath, profile)
+        o.debug = True
         dfiles = [d1, dir1, d2]
 
         # import the files