diff --git a/pywraps/py_funcs.hpp b/pywraps/py_funcs.hpp
index ccde749..280a2a5 100644
--- a/pywraps/py_funcs.hpp
+++ b/pywraps/py_funcs.hpp
@@ -15,7 +15,7 @@ def get_fchunk_referer(ea, idx):
 static ea_t get_fchunk_referer(ea_t ea, size_t idx)
 {
   func_t *pfn = get_fchunk(ea);
-  if ( pfn == NULL )
+  if ( !is_func_tail(pfn) )
     return BADADDR;
   func_parent_iterator_t dummy(pfn); // read referer info
   if ( idx >= pfn->refqty || pfn->referers == NULL )