diff --git a/apps/regression/graph_controller.cpp b/apps/regression/graph_controller.cpp
index 1071bde56..2c0213b1f 100644
--- a/apps/regression/graph_controller.cpp
+++ b/apps/regression/graph_controller.cpp
@@ -121,8 +121,8 @@ void GraphController::reloadBannerView() {
   double x = m_cursor->x();
   // Display a specific legend if the mean dot is selected
   if (*m_selectedDotIndex == m_store->numberOfPairsOfSeries(*m_selectedSeriesIndex)) {
-    constexpr static char legX[] = {'X'/*TODO LEA Ion::Charset::XBar*/, '=', 0};
-    legend = legX;
+    // \xCC\x84 represents the combining bar ' ̄'
+    legend = "x\xCC\x84=";
     x = m_store->meanOfColumn(*m_selectedSeriesIndex, 0);
   }
   numberOfChar += strlcpy(buffer, legend, bufferSize);
@@ -138,8 +138,8 @@ void GraphController::reloadBannerView() {
   legend = "y=";
   double y = m_cursor->y();
   if (*m_selectedDotIndex == m_store->numberOfPairsOfSeries(*m_selectedSeriesIndex)) {
-    constexpr static char legY[] = {'Y' /*TODO LEA Ion::Charset::YBar*/, '=', 0};
-    legend = legY;
+    // \xCC\x84 represents the combining bar ' ̄'
+    legend = "y\xCC\x84=";
     y = m_store->meanOfColumn(*m_selectedSeriesIndex, 1);
   }
   numberOfChar += strlcpy(buffer, legend, bufferSize);
diff --git a/kandinsky/fonts/code_points.h b/kandinsky/fonts/code_points.h
index f4edaedfc..42da24c24 100644
--- a/kandinsky/fonts/code_points.h
+++ b/kandinsky/fonts/code_points.h
@@ -145,9 +145,6 @@ uint32_t CodePoints[] = {
   0x1d422, // 𝐢 // MATHEMATICAL BOLD SMALL I"
 
   // Apostrophe
-  // Xbar
-  // Ybar
-
 };
 
 int NumberOfCodePoints = sizeof(CodePoints)/sizeof(CodePoints[0]);