diff --git a/Tests/ArrayCoreTest.cpp b/Tests/ArrayCoreTest.cpp
index 2f1f968..2af84ce 100644
--- a/Tests/ArrayCoreTest.cpp
+++ b/Tests/ArrayCoreTest.cpp
@@ -126,6 +126,7 @@ TEST(ArrayCore, configurator) {
   auto config = dv::Config();
   config.heatmap.xLabel = "Столбцы";
   config.heatmap.yLabel = "Строки";
+  config.heatmap.zLabel = "Z";
   config.heatmap.title = "Тестовая матрица";
   config.heatmap.colorSc = dv::COLORSCALE_YlGnBu;
   bool result1 = dv::show(values, "HeatMap", config);
diff --git a/array_core/configurator.h b/array_core/configurator.h
index ba6f215..8c301b4 100644
--- a/array_core/configurator.h
+++ b/array_core/configurator.h
@@ -36,6 +36,7 @@ struct commonSettings {
   std::string title;
   std::string xLabel;
   std::string yLabel;
+  std::string zLabel;
   double aspectRatioWidth; // use it for user scale if isFitPlotToWindow = false
   double aspectRatioHeight;// use it for user scale if isFitPlotToWindow = false
   bool isFitPlotToWindow; //true - plot fits to  browser window, false - square plot
diff --git a/davis_one/davis.cpp b/davis_one/davis.cpp
index c84aa72..56a6740 100644
--- a/davis_one/davis.cpp
+++ b/davis_one/davis.cpp
@@ -1335,6 +1335,7 @@ bool createHtmlPageHeatmap(const std::vector<std::vector<double>>& values,
   args[ARG_TITLE] = configuration.heatmap.title;
   args[ARG_TITLE_X] = configuration.heatmap.xLabel;
   args[ARG_TITLE_Y] = configuration.heatmap.yLabel;
+  args[ARG_TITLE_Z] = configuration.heatmap.zLabel;
   args[ARG_ASPECT_RATIO_WIDTH] = dvs::toStringDotSeparator(configuration.heatmap.aspectRatioWidth);
   args[ARG_ASPECT_RATIO_HEIGHT] = dvs::toStringDotSeparator(configuration.heatmap.aspectRatioHeight);
   string paramWH;
diff --git a/davis_one/davis.h b/davis_one/davis.h
index 37b7024..e0f21c9 100644
--- a/davis_one/davis.h
+++ b/davis_one/davis.h
@@ -67,6 +67,7 @@ struct commonSettings {
   std::string title;
   std::string xLabel;
   std::string yLabel;
+  std::string zLabel;
   double aspectRatioWidth; // use it for user scale if isFitPlotToWindow = false
   double aspectRatioHeight;// use it for user scale if isFitPlotToWindow = false
   bool isFitPlotToWindow; //true - plot fits to  browser window, false - square plot
diff --git a/plotly_maker/plotly_maker.cpp b/plotly_maker/plotly_maker.cpp
index fed865c..c154ae6 100644
--- a/plotly_maker/plotly_maker.cpp
+++ b/plotly_maker/plotly_maker.cpp
@@ -119,6 +119,7 @@ bool createHtmlPageHeatmap(const std::vector<std::vector<double>>& values,
   args[ARG_TITLE] = configuration.heatmap.title;
   args[ARG_TITLE_X] = configuration.heatmap.xLabel;
   args[ARG_TITLE_Y] = configuration.heatmap.yLabel;
+  args[ARG_TITLE_Z] = configuration.heatmap.zLabel;
   args[ARG_ASPECT_RATIO_WIDTH] = dvs::toStringDotSeparator(configuration.heatmap.aspectRatioWidth);
   args[ARG_ASPECT_RATIO_HEIGHT] = dvs::toStringDotSeparator(configuration.heatmap.aspectRatioHeight);
   string paramWH;