diff --git a/src/util/virprocess.c b/src/util/virprocess.c
index 7a79970212..501569ff26 100644
--- a/src/util/virprocess.c
+++ b/src/util/virprocess.c
@@ -537,7 +537,7 @@ int virProcessGetAffinity(pid_t pid,
 
 #elif defined(HAVE_BSD_CPU_AFFINITY)
 
-int virProcessSetAffinity(pid_t pid ATTRIBUTE_UNUSED,
+int virProcessSetAffinity(pid_t pid,
                           virBitmapPtr map)
 {
     size_t i;