diff --git a/arch/x86/mm/page.c b/arch/x86/mm/page.c
index 99b010e2..6711bc47 100644
--- a/arch/x86/mm/page.c
+++ b/arch/x86/mm/page.c
@@ -156,7 +156,7 @@ int create_pgd(task_t* task, int copy)
 	task->pgd = pgd;
 
 	if (copy) {
-		spinlock_unlock(&curr_task->pgd_lock);
+		spinlock_lock(&curr_task->pgd_lock);
 
 		for (i=KERNEL_SPACE/(1024*PAGE_SIZE); i<1024; i++) {
 			if (!(curr_task->pgd->entries[i]))