diff --git a/src/tools/compiletest/src/directives/directive_names.rs b/src/tools/compiletest/src/directives/directive_names.rs
index 41ea492d6f38f..b8f8d3145152f 100644
--- a/src/tools/compiletest/src/directives/directive_names.rs
+++ b/src/tools/compiletest/src/directives/directive_names.rs
@@ -61,6 +61,7 @@ pub(crate) const KNOWN_DIRECTIVE_NAMES: &[&str] = &[
     "ignore-avr",
     "ignore-backends",
     "ignore-beta",
+    "ignore-bpf",
     "ignore-cdb",
     "ignore-compare-mode-next-solver",
     "ignore-compare-mode-polonius",
diff --git a/tests/codegen-llvm/cffi/c-variadic-opt.rs b/tests/codegen-llvm/cffi/c-variadic-opt.rs
index c779b25450fd1..9a15342361cc5 100644
--- a/tests/codegen-llvm/cffi/c-variadic-opt.rs
+++ b/tests/codegen-llvm/cffi/c-variadic-opt.rs
@@ -1,4 +1,5 @@
 //@ compile-flags: -C opt-level=3
+//@ ignore-bpf: BPF does not support C variadics
 
 #![crate_type = "lib"]
 #![feature(c_variadic)]