diff --git a/src/ai/ai_gui.cpp b/src/ai/ai_gui.cpp
--- a/src/ai/ai_gui.cpp
+++ b/src/ai/ai_gui.cpp
@@ -646,8 +646,6 @@
 
 	ScriptTextfileWindow(TextfileType file_type, CompanyID slot) : TextfileWindow(file_type), slot(slot)
 	{
-		this->GetWidget<NWidgetCore>(WID_TF_CAPTION)->SetDataTip(STR_TEXTFILE_README_CAPTION + file_type, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS);
-
 		const char *textfile = GetConfig(slot)->GetTextfile(file_type, slot);
 		this->LoadTextfile(textfile, (slot == OWNER_DEITY) ? GAME_DIR : AI_DIR);
 	}
diff --git a/src/newgrf_gui.cpp b/src/newgrf_gui.cpp
--- a/src/newgrf_gui.cpp
+++ b/src/newgrf_gui.cpp
@@ -542,8 +542,6 @@
 
 	NewGRFTextfileWindow(TextfileType file_type, const GRFConfig *c) : TextfileWindow(file_type), grf_config(c)
 	{
-		this->GetWidget<NWidgetCore>(WID_TF_CAPTION)->SetDataTip(STR_TEXTFILE_README_CAPTION + file_type, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS);
-
 		const char *textfile = this->grf_config->GetTextfile(file_type);
 		this->LoadTextfile(textfile, NEWGRF_DIR);
 	}
diff --git a/src/settings_gui.cpp b/src/settings_gui.cpp
--- a/src/settings_gui.cpp
+++ b/src/settings_gui.cpp
@@ -127,8 +127,6 @@
 
 	BaseSetTextfileWindow(TextfileType file_type, const TBaseSet* baseset, StringID content_type) : TextfileWindow(file_type), baseset(baseset), content_type(content_type)
 	{
-		this->GetWidget<NWidgetCore>(WID_TF_CAPTION)->SetDataTip(STR_TEXTFILE_README_CAPTION + file_type, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS);
-
 		const char *textfile = this->baseset->GetTextfile(file_type);
 		this->LoadTextfile(textfile, BASESET_DIR);
 	}
diff --git a/src/textfile_gui.cpp b/src/textfile_gui.cpp
--- a/src/textfile_gui.cpp
+++ b/src/textfile_gui.cpp
@@ -55,6 +55,7 @@
 	this->vscroll = this->GetScrollbar(WID_TF_VSCROLLBAR);
 	this->hscroll = this->GetScrollbar(WID_TF_HSCROLLBAR);
 	this->FinishInitNested(&_textfile_desc);
+	this->GetWidget<NWidgetCore>(WID_TF_CAPTION)->SetDataTip(STR_TEXTFILE_README_CAPTION + file_type, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS);
 }
 
 /* virtual */ TextfileWindow::~TextfileWindow()