diff --git a/src/View/MainWindow.py b/src/View/MainWindow.py
index 1eb655b49ef78039f5df7a09d3049b20062420c4..946eb54eedbdb94b90d98c6440162cef0ad0d861 100644
--- a/src/View/MainWindow.py
+++ b/src/View/MainWindow.py
@@ -141,10 +141,6 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
         # Translate
         self._trad = MainTranslate()
 
-        # Results
-        self._last_solver = None
-        self._last_results = None
-
         # UI
         self.ui = loadUi(
             os.path.join(os.path.dirname(__file__), "ui", "MainWindow.ui"),
diff --git a/src/View/Results/Table.py b/src/View/Results/Table.py
index bce39882c98c5fd4b9b533bc6b9e2f7819417ad2..7ce91f38a37d962cad2f2642fa143e6b1676ce69 100644
--- a/src/View/Results/Table.py
+++ b/src/View/Results/Table.py
@@ -88,7 +88,7 @@ class TableModel(PamhyrTableModel):
                 return f"{v:.4f}"
             elif self._headers[column] == "speed":
                 q = self._lst[row].get_ts_key(self._timestamp, "Q")
-                z = self._lst[row].get_ts_key(self._timestamp, "Q")
+                z = self._lst[row].get_ts_key(self._timestamp, "Z")
 
                 v = self._lst[row].geometry.speed(q, z)
                 return f"{v:.4f}"