diff --git a/rust/helpers/build_bug.c b/rust/helpers/build_bug.c
index 44e579488037..14dbc55bb539 100644
--- a/rust/helpers/build_bug.c
+++ b/rust/helpers/build_bug.c
@@ -2,7 +2,7 @@
 
 #include <linux/errname.h>
 
-const char *rust_helper_errname(int err)
+__rust_helper const char *rust_helper_errname(int err)
 {
 	return errname(err);
 }
diff --git a/rust/helpers/err.c b/rust/helpers/err.c
index 544c7cb86632..2872158e3793 100644
--- a/rust/helpers/err.c
+++ b/rust/helpers/err.c
@@ -2,17 +2,17 @@
 
 #include <linux/err.h>
 
-__force void *rust_helper_ERR_PTR(long err)
+__rust_helper __force void *rust_helper_ERR_PTR(long err)
 {
 	return ERR_PTR(err);
 }
 
-bool rust_helper_IS_ERR(__force const void *ptr)
+__rust_helper bool rust_helper_IS_ERR(__force const void *ptr)
 {
 	return IS_ERR(ptr);
 }
 
-long rust_helper_PTR_ERR(__force const void *ptr)
+__rust_helper long rust_helper_PTR_ERR(__force const void *ptr)
 {
 	return PTR_ERR(ptr);
 }