diff --git a/ci.sh b/ci.sh
index 8ccdb09c8..da842577d 100755
--- a/ci.sh
+++ b/ci.sh
@@ -301,8 +301,9 @@ rm out/tests/stm32f207zg/eth
 # doesn't work, gives "noise error", no idea why. usart_dma does pass.
 rm out/tests/stm32u5a5zj/usart
 
-# flaky, perhaps bad wire
+# flaky, probably due to bad ringbuffered dma code.
 rm out/tests/stm32l152re/usart_rx_ringbuffered
+rm out/tests/stm32f207zg/usart_rx_ringbuffered
 
 if [[ -z "${TELEPROBE_TOKEN-}" ]]; then
     echo No teleprobe token found, skipping running HIL tests