diff --git a/taglib/mp4/mp4chapter.cpp b/taglib/mp4/mp4chapter.cpp
index e87e49a1..04271884 100644
--- a/taglib/mp4/mp4chapter.cpp
+++ b/taglib/mp4/mp4chapter.cpp
@@ -52,7 +52,7 @@ MP4::Chapter::Chapter(Chapter &&other) noexcept = default;
 
 MP4::Chapter::~Chapter() = default;
 
-MP4::Chapter &MP4::Chapter::Chapter::operator=(const Chapter &other)
+MP4::Chapter &MP4::Chapter::operator=(const Chapter &other)
 {
   Chapter(other).swap(*this);
   return *this;