diff --git a/libc/include/unistd.h b/libc/include/unistd.h
index 6cb36d8..08a82e6 100644
--- a/libc/include/unistd.h
+++ b/libc/include/unistd.h
@@ -207,7 +207,7 @@
 
 /* Used to retry syscalls that can return EINTR. */
 #define TEMP_FAILURE_RETRY(exp) ({         \
-    typeof (exp) _rc;                      \
+    __typeof__(exp) _rc;                   \
     do {                                   \
         _rc = (exp);                       \
     } while (_rc == -1 && errno == EINTR); \