diff --git a/libc/include/bits/stdatomic.h b/libc/include/bits/stdatomic.h
index bd94b2d..8df86e2 100644
--- a/libc/include/bits/stdatomic.h
+++ b/libc/include/bits/stdatomic.h
@@ -138,11 +138,11 @@
  * 7.17.4 Fences.
  */
 
-static inline void atomic_thread_fence(memory_order __order __attribute__((unused))) {
+static inline void atomic_thread_fence(memory_order __order __attribute__((__unused__))) {
 	__c11_atomic_thread_fence(__order);
 }
 
-static inline void atomic_signal_fence(memory_order __order __attribute__((unused))) {
+static inline void atomic_signal_fence(memory_order __order __attribute__((__unused__))) {
 	__c11_atomic_signal_fence(__order);
 }
 
diff --git a/libc/include/bits/struct_file.h b/libc/include/bits/struct_file.h
index abbd320..8cb8d28 100644
--- a/libc/include/bits/struct_file.h
+++ b/libc/include/bits/struct_file.h
@@ -39,6 +39,6 @@
 #else
   char __private[84];
 #endif
-} __attribute__((aligned(sizeof(void*))));
+} __attribute__((__aligned__(sizeof(void*))));
 
 __END_DECLS