diff --git a/src/gallium/drivers/d3d12/ci/d3d12-flakes.txt b/src/gallium/drivers/d3d12/ci/d3d12-flakes.txt
index f0991a4e38c..89eb9056d6c 100644
--- a/src/gallium/drivers/d3d12/ci/d3d12-flakes.txt
+++ b/src/gallium/drivers/d3d12/ci/d3d12-flakes.txt
@@ -4,3 +4,6 @@ isoline
 # If the test machine are busy, these can spuriously fail
 arb_timer_query
 ext_timer_query
+
+# assertion failure in https://gitlab.freedesktop.org/mesa/mesa/-/jobs/48717501
+spec@arb_compute_shader@execution@simple-barrier-atomics