diff --git a/mugshot_lib/SudoDialog.py b/mugshot_lib/SudoDialog.py
index 52532f1..d7d1ff9 100644
--- a/mugshot_lib/SudoDialog.py
+++ b/mugshot_lib/SudoDialog.py
@@ -67,6 +67,7 @@ class SudoDialog(Gtk.MessageDialog):
         ok_button.connect("clicked", self.on_ok_clicked)
         ok_button.set_receives_default(True)
         ok_button.set_can_default(True)
+        ok_button.set_sensitive(False)
         self.set_default(ok_button)
         button_box.pack_start(ok_button, False, False, 0)
 
@@ -107,6 +108,8 @@ class SudoDialog(Gtk.MessageDialog):
         self.password_entry = Gtk.Entry()
         self.password_entry.set_visibility(False)
         self.password_entry.set_activates_default(True)
+        self.password_entry.connect("changed", self._on_password_changed,
+                                                                    ok_button)
 
         # Pack all the widgets.
         password_box.pack_start(password_label, False, False, 0)
@@ -121,6 +124,10 @@ class SudoDialog(Gtk.MessageDialog):
         self.attempted_logins = 0
         self.max_attempted_logins = retries
 
+    def _on_password_changed(self, widget, button):
+        """Set the apply button sensitivity based on password input."""
+        button.set_sensitive(len(widget.get_text()) > 0)
+
     def format_primary_text(self, message_format):
         '''
         Format the primary text widget.
diff --git a/po/mugshot.pot b/po/mugshot.pot
index 70e575e..25bdf4c 100644
--- a/po/mugshot.pot
+++ b/po/mugshot.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2014-03-02 15:56-0500\n"
+"POT-Creation-Date: 2014-03-02 17:24-0500\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -173,23 +173,23 @@ msgstr ""
 msgid "OK"
 msgstr ""
 
-#: ../mugshot_lib/SudoDialog.py:78
+#: ../mugshot_lib/SudoDialog.py:79
 msgid ""
 "Enter your password to\n"
 "perform administrative tasks."
 msgstr ""
 
-#: ../mugshot_lib/SudoDialog.py:80
+#: ../mugshot_lib/SudoDialog.py:81
 #, python-format
 msgid ""
 "The application '%s' lets you\n"
 "modify essential parts of your system."
 msgstr ""
 
-#: ../mugshot_lib/SudoDialog.py:101
+#: ../mugshot_lib/SudoDialog.py:102
 msgid "Incorrect password... try again."
 msgstr ""
 
-#: ../mugshot_lib/SudoDialog.py:106
+#: ../mugshot_lib/SudoDialog.py:107
 msgid "Password:"
 msgstr ""