diff --git a/tools/cstyle/opj_astyle.cfg b/tools/cstyle/opj_astyle.cfg
index 87c8afd9..849d7a89 100644
--- a/tools/cstyle/opj_astyle.cfg
+++ b/tools/cstyle/opj_astyle.cfg
@@ -1,3 +1,7 @@
 --indent=spaces=4
 -A3
 --lineend=linux
+--exclude=thirdparty 
+--exclude=wrapping 
+-rn 
+--dry-run