diff --git a/libs/main/thread/piprotectedvariable.h b/libs/main/thread/piprotectedvariable.h
index 650d79f5..754eb4e3 100644
--- a/libs/main/thread/piprotectedvariable.h
+++ b/libs/main/thread/piprotectedvariable.h
@@ -25,7 +25,6 @@
 #ifndef PIPROTECTEDVARIABLE_H
 #define PIPROTECTEDVARIABLE_H
 
-#include "picout.h"
 #include "pimutex.h"
 
 //! \~\ingroup Thread
@@ -35,6 +34,8 @@
 template<typename T>
 class PIP_EXPORT PIProtectedVariable {
 public:
+	//! \~english Constructs %PIProtectedVariable and initialize variable by value `v`.
+	//! \~russian Создает %PIProtectedVariable и инициализирует переменную значением `v`.
 	PIProtectedVariable(T v = T()): var(std::move(v)) {}
 
 	//! \~\brief
@@ -43,26 +44,18 @@ public:
 	class PIP_EXPORT Pointer {
 		friend class PIProtectedVariable<T>;
 		NO_COPY_CLASS(Pointer);
+		Pointer & operator=(Pointer && other) = delete;
 
 	public:
-		//! \~\english Move constructor - transfers ownership of the lock.
+		//! \~english Move constructor - transfers ownership of the lock.
 		//! \~russian Конструктор перемещения - передает владение блокировкой.
 		Pointer(Pointer && other): pv(other.pv) { other.can_unlock = false; };
 
-
-		//! \~\english Move assignment - transfers ownership of the lock.
-		//! \~russian Оператор перемещения - передает владение блокировкой.
-		Pointer & operator=(Pointer && other) {
-			pv               = other.pv;
-			other.can_unlock = false;
-		};
-
-		//! \~\english Destroys wrapper and releases the mutex.
+		//! \~english Destroys wrapper and releases the mutex.
 		//! \~russian Уничтожает обертку и освобождает мьютекс.
 		~Pointer() {
 			if (can_unlock) {
 				pv.mutex.unlock();
-				piCout << "mutex.unlock()" << &(pv.mutex);
 			}
 		}
 
@@ -76,10 +69,7 @@ public:
 
 	private:
 		explicit Pointer() = delete;
-		explicit Pointer(PIProtectedVariable<T> & v): pv(v) {
-			pv.mutex.lock();
-			piCout << "mutex.lock()" << &(pv.mutex);
-		}
+		explicit Pointer(PIProtectedVariable<T> & v): pv(v) { pv.mutex.lock(); }
 
 		PIProtectedVariable<T> & pv;
 		bool can_unlock = true;
diff --git a/main.cpp b/main.cpp
index fd98c891..7dda6513 100644
--- a/main.cpp
+++ b/main.cpp
@@ -23,9 +23,9 @@ int main(int argc, char * argv[]) {
 	PIProtectedVariable<double> pv(3.0);
 	piCout << pv.get();
 	{
-    	auto ref = pv.getRef();
+		auto ref = pv.getRef();
 		piCout << *ref;
-        *ref = 11.;
+		*ref = 11.;
 		piCout << *ref;
 	}
 	piCout << pv.get();