diff --git a/testcases/t/285-sticky.t b/testcases/t/285-sticky.t
index f53e4a934..927d3d74c 100644
--- a/testcases/t/285-sticky.t
+++ b/testcases/t/285-sticky.t
@@ -25,41 +25,41 @@ my ($ws, $tmp, $focused);
 #    nothing happens.
 ###############################################################################
 fresh_workspace;
-open_window(wm_class => 'findme');
+open_window;
 cmd 'sticky enable';
 $ws = fresh_workspace;
 
 is(@{get_ws($ws)->{nodes}}, 0, 'tiling sticky container did not move');
 is(@{get_ws($ws)->{floating_nodes}}, 0, 'tiling sticky container did not move');
-cmd '[class="findme"] kill';
+kill_all_windows;
 
 ###############################################################################
 # 2: Given a sticky floating container, when the workspace is switched, then
 #    the container moves to the new workspace.
 ###############################################################################
 $ws = fresh_workspace;
-open_floating_window(wm_class => 'findme');
+open_floating_window;
 $focused = get_focused($ws);
 cmd 'sticky enable';
 $ws = fresh_workspace;
 
 is(@{get_ws($ws)->{floating_nodes}}, 1, 'floating sticky container moved to new workspace');
 is(get_focused($ws), $focused, 'sticky container has focus');
-cmd '[class="findme"] kill';
+kill_all_windows;
 
 ###############################################################################
 # 3: Given two sticky floating containers, when the workspace is switched,
 #    then both containers move to the new workspace.
 ###############################################################################
 fresh_workspace;
-open_floating_window(wm_class => 'findme');
+open_floating_window;
 cmd 'sticky enable';
-open_floating_window(wm_class => 'findme');
+open_floating_window;
 cmd 'sticky enable';
 $ws = fresh_workspace;
 
 is(@{get_ws($ws)->{floating_nodes}}, 2, 'multiple sticky windows can be used at the same time');
-cmd '[class="findme"] kill';
+kill_all_windows;
 
 ###############################################################################
 # 4: Given an unfocused sticky floating container and a tiling container on the
@@ -70,13 +70,13 @@ $ws = fresh_workspace;
 open_window;
 $focused = get_focused($ws);
 fresh_workspace;
-open_floating_window(wm_class => 'findme');
+open_floating_window;
 cmd 'sticky enable';
 open_window;
 cmd 'workspace ' . $ws;
 
 is(get_focused($ws), $focused, 'the tiling container has focus');
-cmd '[class="findme"] kill';
+kill_all_windows;
 
 ###############################################################################
 # 5: Given a focused sticky floating container and a tiling container on the
@@ -86,13 +86,13 @@ cmd '[class="findme"] kill';
 $ws = fresh_workspace;
 open_window;
 $tmp = fresh_workspace;
-open_floating_window(wm_class => 'findme');
+open_floating_window;
 $focused = get_focused($tmp);
 cmd 'sticky enable';
 cmd 'workspace ' . $ws;
 
 is(get_focused($ws), $focused, 'the sticky container has focus');
-cmd '[class="findme"] kill';
+kill_all_windows;
 
 ###############################################################################
 # 6: Given a floating container on a non-visible workspace, when the window
@@ -100,13 +100,13 @@ cmd '[class="findme"] kill';
 #    visible workspace.
 ###############################################################################
 fresh_workspace;
-open_floating_window(wm_class => 'findme');
+open_floating_window;
 cmd 'mark sticky';
 $ws = fresh_workspace;
 cmd '[con_mark=sticky] sticky enable';
 
 is(@{get_ws($ws)->{floating_nodes}}, 1, 'the sticky window jumps to the front');
-cmd '[class="findme"] kill';
+kill_all_windows;
 
 ###############################################################################