diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000000..694020c62d
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,3 @@
+# suppress diffs for codegen in PRs
+**/abi/**/* linguist-generated=true
+**/codegen/**/* linguist-generated=true