diff --git a/src/io/pifile.cpp b/src/io/pifile.cpp
index de80cf33..e1701ffc 100755
--- a/src/io/pifile.cpp
+++ b/src/io/pifile.cpp
@@ -339,7 +339,7 @@ char PIFile::readChar() {
 
 void PIFile::setPath(const PIString & path) {
 	PIIODevice::setPath(path);
-	if (isOpened()) openDevice();
+	if (isOpened()) open();
 }
 
 
diff --git a/src/io/piiodevice.h b/src/io/piiodevice.h
index 16390f55..8ebb8135 100755
--- a/src/io/piiodevice.h
+++ b/src/io/piiodevice.h
@@ -285,7 +285,7 @@ protected:
 	//! Reimplement to configure device from entries "e_main" and "e_parent", cast arguments to \a PIConfig::Entry*
 	virtual bool configureDevice(const void * e_main, const void * e_parent = 0) {return true;}
 	
-	//! Reimplement to open device, return value will be set to "opened_" variable
+	//! Reimplement to open device, return value will be set to "opened_" variable; don't call this function in subclass, use open()
 	virtual bool openDevice() = 0; // use path_, type_, opened_, init_ variables
 	
 	//! Reimplement to close device, inverse return value will be set to "opened_" variable