diff --git a/pgindent_exclude b/pgindent_exclude
new file mode 100644
index 00000000..bf45e62c
--- /dev/null
+++ b/pgindent_exclude
@@ -0,0 +1,6 @@
+
+# List of filename patterns to exclude from pgindent runs
+#
+# This contains code copied from postgres tree as is and slightly modified.
+# We don't want to run pgindent on these files to avoid unnecessary conflicts.
+src\d\d/