diff --git a/docs/changes.txt b/docs/changes.txt
index cf98b6a78f..21dc79d48d 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -113,6 +113,10 @@ Changes in behaviour not resulting in compilation errors
   but may require removing any compensation for not doing this before that may
   be present in the application code.
 
+- Calling wxTextCtrl::SetLabel() now consistently does nothing and asserts
+  under all platforms instead of behaving as SetValue() under MSW and doing
+  nothing elsewhere.
+
 
 Changes in behaviour which may result in build errors
 -----------------------------------------------------
diff --git a/include/wx/textctrl.h b/include/wx/textctrl.h
index 19f89bb36a..a719a53f6c 100644
--- a/include/wx/textctrl.h
+++ b/include/wx/textctrl.h
@@ -913,6 +913,10 @@ public:
         return GetCompositeControlsDefaultAttributes(variant);
     }
 
+    // Setting label for text control doesn't work portably, use SetValue() or
+    // ChangeValue() instead.
+    virtual void SetLabel(const wxString& label) override;
+
     virtual const wxTextEntry* WXGetTextEntry() const override { return this; }
 
 #if wxUSE_SPELLCHECK
diff --git a/interface/wx/window.h b/interface/wx/window.h
index 332db03416..d175cfb581 100644
--- a/interface/wx/window.h
+++ b/interface/wx/window.h
@@ -3399,6 +3399,13 @@ public:
     /**
         Sets the window's label.
 
+        Please note that not all windows have labels and this function may do
+        nothing in this case. And some other derived windows use different
+        functions for changing the text shown in them, e.g. wxTextCtrl uses
+        wxTextCtrl::SetValue() or wxTextCtrl::ChangeValue() and trying to use
+        SetLabel() on it will assert to help to detect possibly erroneous calls
+        to SetLabel().
+
         @param label
             The window label.
 
diff --git a/src/common/textcmn.cpp b/src/common/textcmn.cpp
index d31f761f9d..e7d6a30dbf 100644
--- a/src/common/textcmn.cpp
+++ b/src/common/textcmn.cpp
@@ -931,6 +931,11 @@ bool wxTextCtrlBase::SetDefaultStyle(const wxTextAttr& style)
     return true;
 }
 
+void wxTextCtrlBase::SetLabel(const wxString& WXUNUSED(label))
+{
+    wxFAIL_MSG("Use SetValue() or ChangeValue() instead.");
+}
+
 wxString wxTextAreaBase::GetRTFValue() const
 {
     wxFAIL_MSG("Not implemented for the current platform.");
diff --git a/tests/controls/label.cpp b/tests/controls/label.cpp
index ec72d1a3b7..c242f8f793 100644
--- a/tests/controls/label.cpp
+++ b/tests/controls/label.cpp
@@ -20,6 +20,7 @@
 #include "wx/checkbox.h"
 #include "wx/control.h"
 #include "wx/stattext.h"
+#include "wx/textctrl.h"
 
 #include "wx/generic/stattextg.h"
 
@@ -118,6 +119,17 @@ TEST_CASE("wxControl::Label", "[wxControl][label]")
             cb(new wxCheckBox(wxTheApp->GetTopWindow(), wxID_ANY, ORIGINAL_LABEL));
         DoTestLabel(cb.get());
     }
+
+    SECTION("wxTextCtrl")
+    {
+        const std::unique_ptr<wxTextCtrl>
+            tc(new wxTextCtrl(wxTheApp->GetTopWindow(), wxID_ANY, ORIGINAL_LABEL));
+
+        // Setting the label of a wxTextCtrl should _not_ work, it has value
+        // and not a label.
+        WX_ASSERT_FAILS_WITH_ASSERT( tc->SetLabel("something else") );
+        CHECK( tc->GetValue() == ORIGINAL_LABEL );
+    }
 }
 
 TEST_CASE("wxControl::RemoveMnemonics", "[wxControl][label][mnemonics]")