diff --git a/docs/changes.txt b/docs/changes.txt
index 7269c040ad..cf47256cd3 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -91,6 +91,7 @@ wxGTK:
 
 - Support building wxGTK3 under Windows (Kolya Kosenko).
 - Fix vertical cell alignment in wxDataViewCtrl.
+- Fix clearing of wxComboBox with wxCB_READONLY (Chuddah).
 
 wxMSW:
 
diff --git a/src/gtk/combobox.cpp b/src/gtk/combobox.cpp
index d507865f53..f08cf2b1f8 100644
--- a/src/gtk/combobox.cpp
+++ b/src/gtk/combobox.cpp
@@ -297,7 +297,12 @@ wxComboBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 
 void wxComboBox::Clear()
 {
-    wxTextEntry::Clear();
+    // Do not call wxTextEntry::Clear() here as it's implemented in terms of
+    // virtual SetValue() and so would call our own overridden version of this
+    // method, which wouldn't do the right thing in wxCB_READONLY case.
+    //
+    // Clear the text directly to avoid this.
+    wxTextEntry::SetValue(wxString());
     wxItemContainer::Clear();
 }