diff --git a/setup.py b/setup.py
index ebff89a61ea48a004e9bc61ed2da7ab72c6357c0..2929986b1fc95d0140788ee82a96a05e8ea2ed14 100644
--- a/setup.py
+++ b/setup.py
@@ -74,7 +74,7 @@ def get_config():
         lapack_opt_info = np.__config__.lapack_opt_info
     except:
         try:
-            lapack_opt_info = np.__config__.bla_ilp64_opt_info
+            lapack_opt_info = np.__config__.lapack_ilp64_opt_info
         except:
             lapack_opt_info = None