diff --git a/ext/zstdruby/exports.txt b/ext/zstdruby/exports.txt
index f1607c0..f2e3f30 100644
--- a/ext/zstdruby/exports.txt
+++ b/ext/zstdruby/exports.txt
@@ -1 +1,2 @@
-_Init_zstdruby 
\ No newline at end of file
+_Init_zstdruby
+_ruby_abi_version