diff --git a/library/xml b/library/xml
index d8e10fe0c..c98b89239 160000
--- a/library/xml
+++ b/library/xml
@@ -1 +1 @@
-Subproject commit d8e10fe0cd24e33aab412d13ab650dcdb49d718d
+Subproject commit c98b89239c387f967a8656c863f9a923c26244d2
diff --git a/plugins/devel/check-structures-sanity.cpp b/plugins/devel/check-structures-sanity.cpp
index 9f1c3a346..cb147edb7 100644
--- a/plugins/devel/check-structures-sanity.cpp
+++ b/plugins/devel/check-structures-sanity.cpp
@@ -37,7 +37,7 @@ DFhackCExport command_result plugin_init(color_ostream &, std::vector<PluginComm
         "performs a sanity check on df-structures",
         command,
         false,
-        "usage: check-structures-sanity [-enums] [-sizes] [starting_point]\n"
+        "check-structures-sanity [-enums] [-sizes] [starting_point]\n"
         "\n"
         "-enums: report unexpected or unnamed enum or bitfield values\n"
         "-sizes: report struct and class sizes that don't match structures (requires sizecheck)\n"
@@ -154,6 +154,10 @@ static command_result command(color_ostream & out, std::vector<std::string> & pa
         {
             return CR_FAILURE;
         }
+        if (!lua_touserdata(State, -1))
+        {
+            return CR_WRONG_USAGE;
+        }
 
         ToCheck ref;
         ref.path.push_back(parameters.at(0));
diff --git a/scripts b/scripts
index b1e46e818..074f75808 160000
--- a/scripts
+++ b/scripts
@@ -1 +1 @@
-Subproject commit b1e46e818a6c44fe8a9688754f511a8e3aa18668
+Subproject commit 074f7580865b643011ea2e0fcfca55b5d5a7bbe8