diff --git a/rust/qemu-macros/meson.build b/rust/qemu-macros/meson.build
index 0f27e0df92..17b2a4e2e2 100644
--- a/rust/qemu-macros/meson.build
+++ b/rust/qemu-macros/meson.build
@@ -2,11 +2,6 @@ _qemu_macros_rs = rust.proc_macro(
   'qemu_macros',
   files('src/lib.rs'),
   override_options: ['rust_std=2021', 'build.rust_std=2021'],
-  rust_args: [
-    '--cfg', 'use_fallback',
-    '--cfg', 'feature="syn-error"',
-    '--cfg', 'feature="proc-macro"',
-  ],
   dependencies: [
     attrs_rs_native,
     proc_macro2_rs_native,
diff --git a/subprojects/packagefiles/bilge-impl-0.2-rs/meson.build b/subprojects/packagefiles/bilge-impl-0.2-rs/meson.build
index 42b03dcd53..04617b875c 100644
--- a/subprojects/packagefiles/bilge-impl-0.2-rs/meson.build
+++ b/subprojects/packagefiles/bilge-impl-0.2-rs/meson.build
@@ -26,9 +26,6 @@ _bilge_impl_rs = rust.proc_macro(
   override_options: ['rust_std=2021', 'build.rust_std=2021'],
   rust_args: [
     '--cap-lints', 'allow',
-    '--cfg', 'use_fallback',
-    '--cfg', 'feature="syn-error"',
-    '--cfg', 'feature="proc-macro"',
   ],
   dependencies: [
     itertools_dep,
diff --git a/subprojects/packagefiles/proc-macro-error-1-rs/meson.build b/subprojects/packagefiles/proc-macro-error-1-rs/meson.build
index 10c2741085..8ba558e133 100644
--- a/subprojects/packagefiles/proc-macro-error-1-rs/meson.build
+++ b/subprojects/packagefiles/proc-macro-error-1-rs/meson.build
@@ -23,7 +23,6 @@ _proc_macro_error_rs = static_library(
     '--cap-lints', 'allow',
     '--cfg', 'use_fallback',
     '--cfg', 'feature="syn-error"',
-    '--cfg', 'feature="proc-macro"',
     '-A', 'non_fmt_panics'
   ],
   dependencies: [
diff --git a/subprojects/packagefiles/proc-macro-error-attr-1-rs/meson.build b/subprojects/packagefiles/proc-macro-error-attr-1-rs/meson.build
index c4c4c5e397..a85d7c0714 100644
--- a/subprojects/packagefiles/proc-macro-error-attr-1-rs/meson.build
+++ b/subprojects/packagefiles/proc-macro-error-attr-1-rs/meson.build
@@ -17,9 +17,6 @@ _proc_macro_error_attr_rs = rust.proc_macro(
   override_options: ['rust_std=2018', 'build.rust_std=2018'],
   rust_args: [
     '--cap-lints', 'allow',
-    '--cfg', 'use_fallback',
-    '--cfg', 'feature="syn-error"',
-    '--cfg', 'feature="proc-macro"'
   ],
   dependencies: [
     proc_macro2_dep,