diff --git a/libc/include/sched.h b/libc/include/sched.h
index 68115bb9c..e43b6ccaa 100644
--- a/libc/include/sched.h
+++ b/libc/include/sched.h
@@ -59,10 +59,10 @@ extern int unshare(int);
 extern int sched_getcpu(void);
 extern int setns(int, int);
 
-#ifdef __LP32__
-#define CPU_SETSIZE 32
-#else
+#ifdef __LP64__
 #define CPU_SETSIZE 1024
+#else
+#define CPU_SETSIZE 32
 #endif
 
 #define __CPU_BITTYPE  unsigned long int  /* mandated by the kernel  */