--- a/tincan.py	Sun May 26 17:06:32 2019 -0700
+++ b/tincan.py	Sun May 26 18:14:14 2019 -0700
@@ -207,9 +207,9 @@
         if base is not None:
             encoding = config.get("encoding", "utf-8")
             if subdir is not None:
-                self.expression_types['load'] = \
+                self.expression_types['lload'] = \
                     _LoaderFactory(base, subdir, encoding)
-            self.expression_types['lload'] = \
+            self.expression_types['load'] = \
                 _LoaderFactory(os.path.join(base,_WINF,"tlib"), [], encoding)
 
 class _LoaderFactory(object):
@@ -228,9 +228,10 @@
     """
     Two of two helper classes for the above.
     """
+    _EXTEN = ".pt"
     def __init__(self, based_on, string):
-        if not (string.endswith(".pspx") or string.endswith(".pt")):
-            raise ValueError("loaded templates must end in .pspx or .pt")
+        if not string.endswith(self._EXTEN):
+            raise ValueError("loaded templates must end in {0}".format(self._EXTEN))
         self.path = string
         self.params = based_on
 
@@ -242,7 +243,9 @@
         npath = os.path.join(self.params.base, *normalized)
         with open(npath, "r", encoding=self.params.encoding) as fp:
             contents = fp.read()
-        value = ast.Str(contents)
+        value = ast.Call(func=TinCanChameleon, args=[contents],
+            kwargs={"base": self.params.base, "subdir": self.params.subdir,
+                "encoding": self.params.encoding})
         return [ast.Assign(targets=[target], value=value)]
 
 # U t i l i t i e s