diff --git a/src/apps/activitymonitor/ActivityWindow.cpp b/src/apps/activitymonitor/ActivityWindow.cpp
index f72794c161..5a65e870d5 100644
--- a/src/apps/activitymonitor/ActivityWindow.cpp
+++ b/src/apps/activitymonitor/ActivityWindow.cpp
@@ -366,6 +366,7 @@ ActivityWindow::_AddDefaultView()
 			// The first view defaults to memory usage
 			view->AddDataSource(new UsedMemoryDataSource());
 			view->AddDataSource(new CachedMemoryDataSource());
+			view->AddDataSource(new SwapSpaceDataSource());
 			break;
 		case 2:
 			// The third view defaults to network in/out