diff -r 0a40752e401d -r 40ab091e5dfa src/StreamRelationalWriter.h
--- a/src/StreamRelationalWriter.h	Sat Jul 21 17:30:25 2018 +0200
+++ b/src/StreamRelationalWriter.h	Sat Jul 21 19:04:37 2018 +0200
@@ -7,9 +7,9 @@
 #include "../include/typedefs.h"
 #include "../include/RelationalWriter.h"
 #include "DataTypeWriterBase.h"
-#include "BooleanDataTypeWriter.h"
-#include "IntegerDataTypeWriter.h"
-#include "StringDataTypeWriter.h"
+#include "types/BooleanDataTypeWriter.h"
+#include "types/IntegerDataTypeWriter.h"
+#include "types/StringDataTypeWriter.h"
 
 namespace relpipe {
 namespace writer {
@@ -17,9 +17,9 @@
 class StreamRelationalWriter : public RelationalWriter {
 private:
 	std::ostream &output;
-	BooleanDataTypeWriter booleanWriter;
-	IntegerDataTypeWriter integerWriter;
-	StringDataTypeWriter stringWriter;
+	types::BooleanDataTypeWriter booleanWriter;
+	types::IntegerDataTypeWriter integerWriter;
+	types::StringDataTypeWriter stringWriter;
 	vector<DataTypeWriterBase*> writers = {&booleanWriter, &integerWriter, &stringWriter};
 
 	void writeString(const string_t &stringValue, const integer_t typeId) {