diff --git a/src/plugins/fset/fset-command.c b/src/plugins/fset/fset-command.c
index c03f148cc..3236a33b6 100644
--- a/src/plugins/fset/fset-command.c
+++ b/src/plugins/fset/fset-command.c
@@ -287,7 +287,7 @@ fset_command_init ()
            "             *       show all options (no filter)\n"
            "             f:xxx   show only configuration file \"xxx\"\n"
            "             s:xxx   show only section \"xxx\"\n"
-           "             d:      show only changed options\n"
+           "             d       show only changed options\n"
            "             d:xxx   show only changed options with \"xxx\" in name\n"
            "             d=xxx   show only changed options with \"xxx\" in value\n"
            "             d==xxx  show only changed options with exact value \"xxx\"\n"
diff --git a/src/plugins/fset/fset-option.c b/src/plugins/fset/fset-option.c
index d09e84e06..62aad7266 100644
--- a/src/plugins/fset/fset-option.c
+++ b/src/plugins/fset/fset-option.c
@@ -243,12 +243,13 @@ fset_option_match_filters (const char *config_name, const char *section_name,
         /* filter by modified values */
         if (!fset_option_value_different_from_default (fset_option))
             return 0;
-        if (fset_option_filter[2]
-            && !fset_option_string_match (fset_option->name, fset_option_filter + 2))
-        {
-            return 0;
-        }
-        return 1;
+        return fset_option_string_match (fset_option->name,
+                                         fset_option_filter + 2) ? 1 : 0;
+    }
+    else if (strcmp (fset_option_filter, "d") == 0)
+    {
+        /* filter by modified values */
+        return (fset_option_value_different_from_default (fset_option)) ? 1 : 0;
     }
     else if (strncmp (fset_option_filter, "==", 2) == 0)
     {