diff --git a/hy/macros.py b/hy/macros.py
index ffa5356..fe13213 100644
--- a/hy/macros.py
+++ b/hy/macros.py
@@ -6,6 +6,7 @@ from hy._compat import PY3
 import hy.inspect
 from hy.models import replace_hy_obj, HyExpression, HySymbol
 from hy.lex.parser import hy_symbol_mangle
+from hy._compat import str_type
 
 from hy.errors import HyTypeError, HyMacroExpansionError
 
@@ -35,6 +36,7 @@ def macro(name):
     This function is called from the `defmacro` special form in the compiler.
 
     """
+    name = hy_symbol_mangle(name)
     def _(fn):
         fn.__name__ = '({})'.format(name)
         try:
@@ -95,14 +97,15 @@ def require(source_module, target_module,
     seen_names = set()
     if prefix:
         prefix += "."
+    assignments = {hy_symbol_mangle(str_type(k)): v for k, v in assignments.items()}
 
     for d in _hy_macros, _hy_tag:
         for name, macro in d[source_module].items():
             seen_names.add(name)
             if all_macros:
-                d[target_module][prefix + name] = macro
+                d[target_module][hy_symbol_mangle(prefix + name)] = macro
             elif name in assignments:
-                d[target_module][prefix + assignments[name]] = macro
+                d[target_module][hy_symbol_mangle(prefix + assignments[name])] = macro
 
     if not all_macros:
         unseen = frozenset(assignments.keys()).difference(seen_names)
@@ -184,6 +187,7 @@ def macroexpand_1(tree, compiler):
         opts = {}
 
         if isinstance(fn, HySymbol):
+            fn = hy_symbol_mangle(str_type(fn))
             m = _hy_macros[compiler.module_name].get(fn)
             if m is None:
                 m = _hy_macros[None].get(fn)
diff --git a/tests/native_tests/mangling.hy b/tests/native_tests/mangling.hy
index 4351436..b83365e 100644
--- a/tests/native_tests/mangling.hy
+++ b/tests/native_tests/mangling.hy
@@ -106,6 +106,15 @@
     (assert (= hyx_Xlatin_capital_letter_xXXskull_and_crossbonesX "treasure"))))
 
 
+(defmacro m---x [form]
+  [form form])
+(defn test-macro []
+  (setv x "")
+  (assert (= (m---x (do (+= x "a") 1)) [1 1]))
+  (assert (= (m___x (do (+= x "b") 2)) [2 2]))
+  (assert (= x "aabb")))
+
+
 (deftag tm---x [form]
   [form form])
 (defn test-tag-macro []