diff --git a/test_crates/crab-2/build.rs b/test_crates/crab-2/build.rs
index 0bffe22..23efdd7 100644
--- a/test_crates/crab-2/build.rs
+++ b/test_crates/crab-2/build.rs
@@ -8,6 +8,7 @@ fn main() {
     run(Command::new("cc")
         .arg("-c")
         .arg(base_dir.join("nothing.c"))
+        .arg("-fPIC")
         .arg("-o")
         .arg(&object_file));
     run(Command::new("ar")
diff --git a/test_crates/pmacro-1/src/lib.rs b/test_crates/pmacro-1/src/lib.rs
index e000e52..3cabc04 100644
--- a/test_crates/pmacro-1/src/lib.rs
+++ b/test_crates/pmacro-1/src/lib.rs
@@ -18,7 +18,7 @@ pub fn create_write_to_file(_item: TokenStream) -> TokenStream {
     .unwrap()
 }
 
-#[proc_macro_derive(FooBar, attributes(marker))]
+#[proc_macro_derive(FooBar)]
 pub fn derive_foo_bar(_item: TokenStream) -> TokenStream {
     "impl FooBar for Foo { fn foo_bar() -> u32 { 42 } }"
         .parse()