diff --git a/src/libstd/rand/os.rs b/src/libstd/rand/os.rs
index a2e6915a6a6f7..fc9585d919069 100644
--- a/src/libstd/rand/os.rs
+++ b/src/libstd/rand/os.rs
@@ -41,9 +41,7 @@ mod imp {
         const NR_GETRANDOM: libc::c_long = 318;
         #[cfg(target_arch = "x86")]
         const NR_GETRANDOM: libc::c_long = 355;
-        #[cfg(any(target_arch = "arm", target_arch = "aarch64"))]
-        const NR_GETRANDOM: libc::c_long = 384;
-        #[cfg(target_arch = "powerpc")]
+        #[cfg(any(target_arch = "arm", target_arch = "aarch64", target_arch = "powerpc"))]
         const NR_GETRANDOM: libc::c_long = 384;
 
         unsafe {