diff --git a/taglib/mp4/mp4itemfactory.cpp b/taglib/mp4/mp4itemfactory.cpp
index e2747f0a..486ebc42 100644
--- a/taglib/mp4/mp4itemfactory.cpp
+++ b/taglib/mp4/mp4itemfactory.cpp
@@ -380,6 +380,7 @@ Map<ByteVector, String> ItemFactory::namePropertyMap() const
     {"disk", "DISCNUMBER"},
     {"cpil", "COMPILATION"},
     {"tmpo", "BPM"},
+    {"rate", "RATING"},
     {"cprt", "COPYRIGHT"},
     {"\251lyr", "LYRICS"},
     {"\251too", "ENCODING"},
diff --git a/taglib/toolkit/tpropertymap.h b/taglib/toolkit/tpropertymap.h
index f21c526b..461debae 100644
--- a/taglib/toolkit/tpropertymap.h
+++ b/taglib/toolkit/tpropertymap.h
@@ -92,6 +92,7 @@ namespace TagLib {
    *  - ISRC
    *  - ASIN
    *  - BPM
+   *  - RATING
    *  - COPYRIGHT
    *  - ENCODEDBY
    *  - MOOD
diff --git a/tests/test_mp4.cpp b/tests/test_mp4.cpp
index 52e3f8fb..dfb90f0b 100644
--- a/tests/test_mp4.cpp
+++ b/tests/test_mp4.cpp
@@ -607,6 +607,14 @@ public:
     CPPUNIT_ASSERT_EQUAL(123, f.tag()->item("tmpo").toInt());
     CPPUNIT_ASSERT_EQUAL(StringList("123"), tags["BPM"]);
 
+    tags["RATING"] = StringList("80");
+    f.setProperties(tags);
+
+    tags = f.properties();
+
+    CPPUNIT_ASSERT(f.tag()->contains("rate"));
+    CPPUNIT_ASSERT_EQUAL(StringList("80"), tags["RATING"]);
+
     CPPUNIT_ASSERT(f.tag()->contains("\251ART"));
     CPPUNIT_ASSERT_EQUAL(StringList("Foo Bar"), f.tag()->item("\251ART").toStringList());
     CPPUNIT_ASSERT_EQUAL(StringList("Foo Bar"), tags["ARTIST"]);