diff --git a/BlueMapCommon/src/main/java/de/bluecolored/bluemap/common/plugin/commands/Commands.java b/BlueMapCommon/src/main/java/de/bluecolored/bluemap/common/plugin/commands/Commands.java
index 5868bce3..fb981649 100644
--- a/BlueMapCommon/src/main/java/de/bluecolored/bluemap/common/plugin/commands/Commands.java
+++ b/BlueMapCommon/src/main/java/de/bluecolored/bluemap/common/plugin/commands/Commands.java
@@ -785,6 +785,7 @@ public int cancelCommand(CommandContext<S> context) {
 		if (!ref.isPresent()) {
 			plugin.getRenderManager().removeAllRenderTasks();
 			source.sendMessage(Text.of(TextColor.GREEN, "All tasks cancelled!"));
+			source.sendMessage(Text.of(TextColor.GRAY, "(Note, that an already started task might not be removed immediately. Some tasks needs to do some tidying-work first)"));
 			return 1;
 		}
 
@@ -797,6 +798,7 @@ public int cancelCommand(CommandContext<S> context) {
 
 		if (plugin.getRenderManager().removeRenderTask(task.get())) {
 			source.sendMessage(Text.of(TextColor.GREEN, "Task cancelled!"));
+			source.sendMessage(Text.of(TextColor.GRAY, "(Note, that an already started task might not be removed immediately. Some tasks needs to do some tidying-work first)"));
 			return 1;
 		} else {
 			source.sendMessage(Text.of(TextColor.RED, "This task is either completed or got cancelled already!"));