diff --git a/qt/emilpro/mainwindow.cc b/qt/emilpro/mainwindow.cc
index be77ced..a626cd6 100644
--- a/qt/emilpro/mainwindow.cc
+++ b/qt/emilpro/mainwindow.cc
@@ -727,13 +727,26 @@ MainWindow::RestoreSettings()
     QSettings settings("ska", "emilpro");
 
     settings.beginGroup("MainWindow");
-
     if (const auto geometry = settings.value("geometry", QByteArray()).toByteArray();
         !geometry.isEmpty())
     {
         restoreGeometry(geometry);
     }
+    settings.endGroup();
 
+    settings.beginGroup("Splitters");
+    if (const auto state =
+            settings.value("symbol_instruction_splitter_size", QByteArray()).toByteArray();
+        !state.isEmpty())
+    {
+        m_ui->symbolInstructionSplitter->restoreState(state);
+    }
+    if (const auto state =
+            settings.value("instruction_source_splitter_size", QByteArray()).toByteArray();
+        !state.isEmpty())
+    {
+        m_ui->instructionSourceSplitter->restoreState(state);
+    }
     settings.endGroup();
 }
 
@@ -745,6 +758,13 @@ MainWindow::SaveSettings()
     settings.beginGroup("MainWindow");
     settings.setValue("geometry", saveGeometry());
     settings.endGroup();
+
+    settings.beginGroup("Splitters");
+    settings.setValue("symbol_instruction_splitter_size",
+                      m_ui->symbolInstructionSplitter->saveState());
+    settings.setValue("instruction_source_splitter_size",
+                      m_ui->instructionSourceSplitter->saveState());
+    settings.endGroup();
 }
 
 void
diff --git a/qt/emilpro/mainwindow.ui b/qt/emilpro/mainwindow.ui
index 1a06a0f..65f7b20 100644
--- a/qt/emilpro/mainwindow.ui
+++ b/qt/emilpro/mainwindow.ui
@@ -44,7 +44,7 @@
       <property name="orientation">
        <enum>Qt::Vertical</enum>
       </property>
-      <widget class="QSplitter" name="splitter">
+      <widget class="QSplitter" name="symbolInstructionSplitter">
        <property name="sizePolicy">
         <sizepolicy hsizetype="Preferred" vsizetype="Expanding">
          <horstretch>0</horstretch>
@@ -401,7 +401,7 @@
         </layout>
        </widget>
       </widget>
-      <widget class="QSplitter" name="splitter_2">
+      <widget class="QSplitter" name="instructionSourceSplitter">
        <property name="orientation">
         <enum>Qt::Horizontal</enum>
        </property>