diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 5b94b0f..694f3b0 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -2800,7 +2800,7 @@
             if (ucnhash_CAPI == NULL) {
                 /* load the unicode data module */
                 PyObject *m, *api;
-                m = PyImport_ImportModule("unicodedata");
+                m = PyImport_ImportModuleNoBlock("unicodedata");
                 if (m == NULL)
                     goto ucnhashError;
                 api = PyObject_GetAttrString(m, "ucnhash_CAPI");