diff --git a/src/core/pistring.cpp b/src/core/pistring.cpp
index ca772ad4..58cdb9a8 100755
--- a/src/core/pistring.cpp
+++ b/src/core/pistring.cpp
@@ -294,6 +294,17 @@ PIByteArray PIString::toUTF8() const {
 }
 
 
+PIByteArray PIString::toCharset(const char * c) const {
+	buildData(
+#ifdef PIP_ICU
+			  c
+#endif
+				);
+	return data_.resized(data_.size_s() - 1);
+
+}
+
+
 PIString & PIString::operator +=(const char * str) {
 	int l = 0;
 	while (str[l] != '\0') ++l;
diff --git a/src/core/pistring.h b/src/core/pistring.h
index eadf9a33..172f953d 100755
--- a/src/core/pistring.h
+++ b/src/core/pistring.h
@@ -505,6 +505,9 @@ public:
 	//! \brief Return \a PIByteArray contains UTF-8 \a data() of this string without terminating null-char
 	PIByteArray toUTF8() const;
 
+	//! \brief Return \a PIByteArray contains custom charset representation of this string without terminating null-char
+	PIByteArray toCharset(const char * c) const;
+
 	/*! \brief Split string with delimiter "delim" to \a PIStringList and return it
 	 * \details Example: \snippet pistring.cpp PIString::split */
 	PIStringList split(const PIString & delim) const;
diff --git a/src/io/pifile.cpp b/src/io/pifile.cpp
index 81a1a02b..857c4ad8 100755
--- a/src/io/pifile.cpp
+++ b/src/io/pifile.cpp
@@ -382,6 +382,13 @@ PIFile & PIFile::writeToBinLog(ushort id, const void * data, int size) {
 }
 
 
+PIFile &PIFile::operator <<(const PIString & v) {
+	if (canWrite() && fd != 0)
+		*this << v.toCharset(defaultCharset());
+	return *this;
+}
+
+
 void PIFile::clear() {
 	close();
 	fd = fopen(path().data(), "w");
diff --git a/src/io/pifile.h b/src/io/pifile.h
index a52617c1..573ee1b5 100755
--- a/src/io/pifile.h
+++ b/src/io/pifile.h
@@ -188,7 +188,7 @@ public:
 	PIFile & operator <<(const char v) {if (canWrite() && fd != 0) write(&v, 1); return *this;}
 	//PIFile & operator <<(const string & v) {write(v.c_str(), v.size()); return *this;}
 	//! Write to file string "v"
-	PIFile & operator <<(const PIString & v) {if (canWrite() && fd != 0) *this << v.toByteArray(); return *this;}
+	PIFile & operator <<(const PIString & v);
 	//! Write to file text representation of "v"
 	PIFile & operator <<(const PIByteArray & v) {if (canWrite() && fd != 0) write(v.data(), v.size()); return *this;}
 	//! Write to file text representation of "v"