diff --git a/src/sys/setpag.c b/src/sys/setpag.c
index 169dafa983..8a36af5291 100644
--- a/src/sys/setpag.c
+++ b/src/sys/setpag.c
@@ -57,7 +57,12 @@ lsetpag(void)
     if(rval)
       errcode = syscall(AFS_SYSCALL, AFSCALL_SETPAG);
 #elif defined(AFS_DARWIN80_ENV)
-    errcode = ioctl_afs_syscall(AFSCALL_SETPAG,0,0,0,0,0,0,&errcode);
+    int rval;
+
+    rval = ioctl_afs_syscall(AFSCALL_SETPAG,0,0,0,0,0,0,&errcode);
+    if (rval) {
+	errorcode = rval;
+    }
 #else
     errcode = syscall(AFS_SYSCALL, AFSCALL_SETPAG);
 #endif