diff --git a/README.md b/README.md
index 43ae2e3..8b5c4a2 100644
--- a/README.md
+++ b/README.md
@@ -70,7 +70,7 @@ git clone --recurse-submodules https://github.com/UmbrellaLeaf5/locus_no_pilotus
 ## Used libs and packages
 * [CMake](https://cmake.org/): main project build system
 * [Qt](https://www.qt.io/): main project library for full-working program
-* [QCustomPlot](https://www.qcustomplot.com/): library for drawing all objects on same place with autoscaling ([submodule](https://github.com/legerch/QCustomPlot-library "reference for submodule with lib in GitHub"))
+* [QCustomPlot](https://www.qcustomplot.com/): library for drawing all objects on same place with autoscaling ([submodule](https://github.com/UmbrellaLeaf5/qcustomplot "reference for submodule with lib in GitHub"))
 * [IceCream-Cpp](https://github.com/renatoGarcia/icecream-cpp): library for simple code debugging (we really recommend to use it in C++ projects)
 * [Doxygen](https://www.doxygen.nl/): full documentation generation
 * [Doxygen Awesome](https://github.com/jothepro/doxygen-awesome-css): convenient CSS theme for Doxygen HTML documentation (it is really awesome)
diff --git a/main/mainwindow.cpp b/main/mainwindow.cpp
index 45607cd..ff479fc 100644
--- a/main/mainwindow.cpp
+++ b/main/mainwindow.cpp
@@ -41,9 +41,11 @@ MainWindow::MainWindow(QWidget* parent)
   int_validator->setRange(1, 9);
   ui->robotsAmountLineEdit->setValidator(int_validator);
 
-  connect(
-      ui->plotSettingsDockWidget, &QDockWidget::visibilityChanged, this,
-      [this](bool visible) { ui->flyRobotPushButton->setEnabled(!visible); });
+  connect(ui->plotSettingsDockWidget, &QDockWidget::visibilityChanged, this,
+          [this](bool visible) {
+            if (is_drown_trajectory_)
+              ui->flyRobotPushButton->setEnabled(!visible);
+          });
 }
 
 MainWindow::~MainWindow() { delete ui; }