diff -r 6162e34fb246 -r 90bf6bd94b94 plcopen/XSLTModelQuery.py
--- a/plcopen/XSLTModelQuery.py	Sun Feb 18 21:30:48 2018 +0100
+++ b/plcopen/XSLTModelQuery.py	Sun Feb 18 21:51:33 2018 +0100
@@ -21,7 +21,7 @@
         # merge xslt extensions for library access to query specific ones
         xsltext = [
             ("GetProject", lambda *_ignored: 
-                controller.GetProject(self.debug)),
+                [controller.GetProject(self.debug)]),
             ("GetStdLibs", lambda *_ignored: 
                 [lib for lib in StdBlckLibs.values()]),
             ("GetExtensions", lambda *_ignored: