diff --git a/editor/plugins/canvas_item_editor_plugin.cpp b/editor/plugins/canvas_item_editor_plugin.cpp
index bac6f3cd793..23467c8377f 100644
--- a/editor/plugins/canvas_item_editor_plugin.cpp
+++ b/editor/plugins/canvas_item_editor_plugin.cpp
@@ -2622,6 +2622,7 @@ bool CanvasItemEditor::_gui_input_select(const Ref<InputEvent> &p_event) {
 
 bool CanvasItemEditor::_gui_input_ruler_tool(const Ref<InputEvent> &p_event) {
 	if (tool != TOOL_RULER) {
+		ruler_tool_active = false;
 		return false;
 	}