diff --git a/ext/bigdecimal/bigdecimal.def b/ext/bigdecimal/bigdecimal.def
deleted file mode 100644
index 8450e164e6..0000000000
--- a/ext/bigdecimal/bigdecimal.def
+++ /dev/null
@@ -1,2 +0,0 @@
-EXPORTS
-Init_bigdecimal