diff --git a/src/ObjLoading/ObjContainer/IPak/IPakEntryReadStream.cpp b/src/ObjLoading/ObjContainer/IPak/IPakEntryReadStream.cpp
index 918528ea..58a4e6b3 100644
--- a/src/ObjLoading/ObjContainer/IPak/IPakEntryReadStream.cpp
+++ b/src/ObjLoading/ObjContainer/IPak/IPakEntryReadStream.cpp
@@ -182,11 +182,11 @@ bool IPakEntryReadStream::AdjustChunkBufferWindowForBlockHeader(const IPakDataBl
 
 bool IPakEntryReadStream::NextBlock()
 {
+    m_pos = AlignForward<int64_t>(m_pos, sizeof(IPakDataBlockHeader));
+
     if (m_pos >= m_end_pos)
         return false;
 
-    m_pos = AlignForward<int64_t>(m_pos, sizeof(IPakDataBlockHeader));
-
     const auto chunkStartPos = AlignBackwards<int64_t>(m_pos, IPAK_CHUNK_SIZE);
     const auto blockOffsetInChunk = static_cast<size_t>(m_pos - chunkStartPos);