diff -Naur a/Cargo.toml b/Cargo.toml
--- a/Cargo.toml	2021-10-24 12:22:44.163859672 -0700
+++ b/Cargo.toml	2021-10-24 12:21:45.897083132 -0700
@@ -24,7 +24,7 @@
 version = "1.3"
 
 [dependencies.libbpf-sys]
-version = "0.5.0-1"
+version = "0.4.0-2"
 
 [dependencies.nix]
 version = "0.22"
diff -Naur a/src/object.rs b/src/object.rs
--- a/src/object.rs	1973-11-29 13:33:09.000000000 -0800
+++ b/src/object.rs	2021-10-24 12:21:56.128219497 -0700
@@ -67,7 +67,6 @@
             pin_root_path: ptr::null(),
             attach_prog_fd: 0,
             kconfig: ptr::null(),
-            btf_custom_path: ptr::null(),
         }
     }