diff --git a/AdvancedDockingSystem/include/ads/Serialization.h b/AdvancedDockingSystem/include/ads/Serialization.h
index 10d93c3..9189c80 100644
--- a/AdvancedDockingSystem/include/ads/Serialization.h
+++ b/AdvancedDockingSystem/include/ads/Serialization.h
@@ -146,7 +146,7 @@ class InMemoryReader
 public:
 	InMemoryReader(const QByteArray& data);
 	bool initReadHeader();
-	bool read(OffsetsHeaderEntry::Type type, QByteArray &data) const;
+	bool read(OffsetsHeaderEntry::Type type, QByteArray &data);
 
 private:
 	QByteArray _data;
diff --git a/AdvancedDockingSystem/src/Serialization.cpp b/AdvancedDockingSystem/src/Serialization.cpp
index 49d2d1e..12b76de 100644
--- a/AdvancedDockingSystem/src/Serialization.cpp
+++ b/AdvancedDockingSystem/src/Serialization.cpp
@@ -388,7 +388,7 @@ bool InMemoryReader::initReadHeader()
 	return !in.atEnd();
 }
 
-bool InMemoryReader::read(OffsetsHeaderEntry::Type type, QByteArray& data) const
+bool InMemoryReader::read(OffsetsHeaderEntry::Type type, QByteArray& data)
 {
 	// Find offset for "type".
 	int index = -1;