diff --git a/runtime/base/mutex-inl.h b/runtime/base/mutex-inl.h
index e066787..0b13e31 100644
--- a/runtime/base/mutex-inl.h
+++ b/runtime/base/mutex-inl.h
@@ -26,16 +26,18 @@
 #include "runtime.h"
 #include "thread.h"
 
-namespace art {
-
-#define CHECK_MUTEX_CALL(call, args) CHECK_PTHREAD_CALL(call, args, name_)
-
 #if ART_USE_FUTEXES
 #include "linux/futex.h"
 #include "sys/syscall.h"
 #ifndef SYS_futex
 #define SYS_futex __NR_futex
 #endif
+#define CHECK_MUTEX_CALL(call, args) CHECK_PTHREAD_CALL(call, args, name_)
+#endif  // ART_USE_FUTEXES
+
+namespace art {
+
+#if ART_USE_FUTEXES
 static inline int futex(volatile int *uaddr, int op, int val, const struct timespec *timeout, volatile int *uaddr2, int val3) {
   return syscall(SYS_futex, uaddr, op, val, timeout, uaddr2, val3);
 }