diff --git a/include/wx/generic/dataview.h b/include/wx/generic/dataview.h
index 4c932cfd1c..247a30d253 100644
--- a/include/wx/generic/dataview.h
+++ b/include/wx/generic/dataview.h
@@ -154,7 +154,7 @@ public:
     // user interactively.
     void WXOnResize(int width);
 
-    int WXGetManuallySetWidth() const { return m_manuallySetWidth; }
+    int WXGetManuallySetWidth() const;
 
 private:
     // common part of all ctors
diff --git a/src/generic/datavgen.cpp b/src/generic/datavgen.cpp
index bce892416b..0e8689765d 100644
--- a/src/generic/datavgen.cpp
+++ b/src/generic/datavgen.cpp
@@ -217,6 +217,15 @@ void wxDataViewColumn::WXOnResize(int width)
     m_owner->OnColumnResized();
 }
 
+int wxDataViewColumn::WXGetManuallySetWidth() const
+{
+    // Note that we need to return valid value even if no width was initially
+    // specified, as otherwise the last column created without any explicit
+    // width could be reduced to nothing by UpdateColumnSizes() when the
+    // control is shrunk.
+    return DoGetEffectiveWidth(m_manuallySetWidth);
+}
+
 void wxDataViewColumn::UpdateDisplay()
 {
     if (m_owner)