diff --git a/libraries/PID/PID.h b/libraries/PID/PID.h
index a25082cd1b..f2d4ac8acc 100644
--- a/libraries/PID/PID.h
+++ b/libraries/PID/PID.h
@@ -12,6 +12,14 @@
 /// @brief	Object managing one PID control
 class PID {
 public:
+	/// Constructor
+	///
+	/// A PID constructed in this fashion does not support save/restore.
+	///
+	PID() :
+		_address(0)
+	{}
+
 	/// Constructor
 	///
 	/// @param address	EEPROM base address at which PID parameters