diff --git a/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix b/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix
index 0763ffda26b9..fe4233d5676b 100644
--- a/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix
+++ b/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix
@@ -27,6 +27,8 @@
     BCACHEFS_FS = module;
     BCACHEFS_QUOTA = option yes;
     BCACHEFS_POSIX_ACL = option yes;
+    # useful for bug reports
+    FTRACE = option yes;
   };
 
   kernelPatches = [ {