diff --git a/nacl/nacl.py b/nacl/nacl.py
index c35916cb40836fd0f757b23ca57d42b52697bb81..2663a002d6a733c8e83fa0ab0ca876f20c2a1292 100644
--- a/nacl/nacl.py
+++ b/nacl/nacl.py
@@ -148,6 +148,12 @@ class Library(object):
         self._ffi = ffi
         self._initalized = False
 
+        # This prevents the compile_module() from being called, the module
+        # should have been compiled by setup.py
+        def _compile_module(*args, **kwargs):
+            raise RuntimeError("Cannot compile module during runtime")
+        self._ffi.verifier.compile_module = _compile_module
+
     def __getattr__(self, name):
         if not self._initalized:
             self._lib = self._ffi.verifier.load_library()