diff --git a/main.c b/main.c
index 1a0b22e..72659c8 100644
--- a/main.c
+++ b/main.c
@@ -11,21 +11,23 @@
 static void writer(void)
 {
 	arch_write_lock(&lock);
-	count = 1;
+	count++;
 	barrier();
-	count = 2;
+	count++;
 	arch_write_unlock(&lock);
 }
 
 static void reader(void)
 {
 	arch_read_lock(&lock);
-	assert(count != 1);
+	assert((count & 1) == 0);
 	arch_read_unlock(&lock);
 }
 
 void _start(void)
 {
 	__rmem_thread_start(writer);
+	__rmem_thread_start(writer);
+	__rmem_thread_start(reader);
 	reader();
 }