diff --git a/tools/tui/graphics/command.go b/tools/tui/graphics/command.go
index 82ee0259b..c502318a3 100644
--- a/tools/tui/graphics/command.go
+++ b/tools/tui/graphics/command.go
@@ -566,6 +566,9 @@ func (self *GraphicsCommand) WriteWithPayloadTo(o io.StringWriter, payload []byt
 			gc.m = GRT_more_nomore
 		}
 		err = gc.serialize_to(o, chunk)
+		if err != nil {
+			return err
+		}
 		if !is_first {
 			gc = GraphicsCommand{}
 		}