diff --git a/src_main/core/pistring.h b/src_main/core/pistring.h
index cd868130..11ba18e5 100755
--- a/src_main/core/pistring.h
+++ b/src_main/core/pistring.h
@@ -344,13 +344,13 @@ public:
 	 * \sa \a expandRightTo() */
 	PIString & expandLeftTo(const int len, const PIChar & c) {if (len > length()) insert(0, PIString(len - length(), c)); return *this;}
 
-	/*! \brief Add " symbols at the beginning and end of the string, and return this string
+	/*! \brief Add "c" symbols at the beginning and end of the string, and return this string
 	 * \sa \a quoted() */
-	PIString & quote() {insert(0, PIChar('"')); *this += PIChar('"'); return *this;}
+	PIString & quote(PIChar c = PIChar('"')) {insert(0, c); *this += c; return *this;}
 
 	/*! \brief Return quoted copy of this string
 	 * \sa \a quote() */
-	PIString   quoted() {return PIString(*this).quote();}
+	PIString   quoted(PIChar c = PIChar('"')) {return PIString(*this).quote(c);}
 	
 	/*! \brief Reverse string and return this string
 	 * \details Example: \snippet pistring.cpp PIString::reverse