diff --git a/include/sched.h b/include/sched.h
index 4394b64b..3e34a72c 100644
--- a/include/sched.h
+++ b/include/sched.h
@@ -123,7 +123,7 @@ __CPU_op_func_S(XOR, ^)
 #define CPU_XOR(d,s1,s2) CPU_XOR_S(sizeof(cpu_set_t),d,s1,s2)
 #define CPU_COUNT(set) CPU_COUNT_S(sizeof(cpu_set_t),set)
 #define CPU_ZERO(set) CPU_ZERO_S(sizeof(cpu_set_t),set)
-#define CPU_EQUAL(set) CPU_EQUAL_S(sizeof(cpu_set_t),set)
+#define CPU_EQUAL(s1,s2) CPU_EQUAL_S(sizeof(cpu_set_t),s1,s2)
 
 #endif