diff --git a/src/PlotDock.cpp b/src/PlotDock.cpp
index 20494310..01be3eef 100644
--- a/src/PlotDock.cpp
+++ b/src/PlotDock.cpp
@@ -117,6 +117,7 @@ void PlotDock::updatePlot(SqliteTableModel* model, BrowseDataTableSettings* sett
                         columnitem->setCheckState(PlotColumnX, Qt::Unchecked);
                 }
             }
+            ui->treePlotColumns->resizeColumnToContents(PlotColumnField);
 
             // Add a row number column at the beginning of the column list, but only when there were (other) columns added
             if(ui->treePlotColumns->topLevelItemCount())
diff --git a/src/PlotDock.h b/src/PlotDock.h
index 88b4df28..b2fbae23 100644
--- a/src/PlotDock.h
+++ b/src/PlotDock.h
@@ -57,7 +57,6 @@ private:
         PlotColumnField = 0,
         PlotColumnX = 1,
         PlotColumnY = 2,
-        PlotColumnDummy = 3
     };
 
     Ui::PlotDock* ui;
diff --git a/src/PlotDock.ui b/src/PlotDock.ui
index 389ec6a3..e4496b4c 100644
--- a/src/PlotDock.ui
+++ b/src/PlotDock.ui
@@ -26,12 +26,18 @@
         <verstretch>2</verstretch>
        </sizepolicy>
       </property>
+      <property name="alternatingRowColors">
+       <bool>true</bool>
+      </property>
       <property name="columnCount">
-       <number>4</number>
+       <number>3</number>
       </property>
       <attribute name="headerDefaultSectionSize">
        <number>100</number>
       </attribute>
+      <attribute name="headerStretchLastSection">
+       <bool>false</bool>
+      </attribute>
       <column>
        <property name="text">
         <string>Columns</string>
@@ -47,20 +53,6 @@
         <string>Y</string>
        </property>
       </column>
-      <column>
-       <property name="text">
-        <string notr="true">_</string>
-       </property>
-       <property name="foreground">
-        <brush brushstyle="NoBrush">
-         <color alpha="0">
-          <red>0</red>
-          <green>0</green>
-          <blue>0</blue>
-         </color>
-        </brush>
-       </property>
-      </column>
      </widget>
      <widget class="QCustomPlot" name="plotWidget" native="true">
       <property name="sizePolicy">