diff --git a/.astyleignore b/.astyleignore
index 2a6f03c08e..3b0e3874e1 100644
--- a/.astyleignore
+++ b/.astyleignore
@@ -25,3 +25,4 @@ components/wifi
 components/TARGET_PSA/TARGET_TFM
 tools
 components/TARGET_PSA/services/attestation/COMPONENT_PSA_SRV_IMPL/tfm_impl
+components/TARGET_PSA/services/attestation/qcbor
\ No newline at end of file