diff --git a/ogg/oggpage.cpp b/ogg/oggpage.cpp
index 68dcb6e..eafe0cb 100644
--- a/ogg/oggpage.cpp
+++ b/ogg/oggpage.cpp
@@ -62,7 +62,7 @@ void OggPage::parseHeader(istream &stream, std::uint64_t startOffset, std::int32
             if (++i < m_segmentCount && entry < 0xFF) {
                 m_segmentSizes.emplace_back(0);
             } else if (i == m_segmentCount && entry == 0xFF) {
-                m_headerTypeFlag |= 0x80; // FIXME v11: don't abuse header type flags
+                m_lastSegmentUnconcluded = true;
             }
         }
         // check whether the maximum size is exceeded
diff --git a/ogg/oggpage.h b/ogg/oggpage.h
index cc9b721..3afc07f 100644
--- a/ogg/oggpage.h
+++ b/ogg/oggpage.h
@@ -48,6 +48,7 @@ private:
     std::uint32_t m_sequenceNumber;
     std::uint32_t m_checksum;
     std::uint8_t m_segmentCount;
+    bool m_lastSegmentUnconcluded;
     std::vector<std::uint32_t> m_segmentSizes;
 };
 
@@ -63,6 +64,7 @@ inline OggPage::OggPage()
     , m_sequenceNumber(0)
     , m_checksum(0)
     , m_segmentCount(0)
+    , m_lastSegmentUnconcluded(false)
 {
 }
 
@@ -134,7 +136,7 @@ inline bool OggPage::isLastPage() const
  */
 inline bool OggPage::isLastSegmentUnconcluded() const
 {
-    return m_headerTypeFlag & 0x80;
+    return m_lastSegmentUnconcluded;
 }
 
 /*!