diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c
index 10481a72cb1..aa380136476 100644
--- a/sys/amd64/amd64/pmap.c
+++ b/sys/amd64/amd64/pmap.c
@@ -669,7 +669,6 @@ pmap_bootstrap(vm_paddr_t *firstaddr)
 	 */
 	PMAP_LOCK_INIT(kernel_pmap);
 	kernel_pmap->pm_pml4 = (pdp_entry_t *)PHYS_TO_DMAP(KPML4phys);
-	kernel_pmap->pm_root = NULL;
 	CPU_FILL(&kernel_pmap->pm_active);	/* don't allow deactivation */
 	TAILQ_INIT(&kernel_pmap->pm_pvchunk);
 
diff --git a/sys/i386/i386/pmap.c b/sys/i386/i386/pmap.c
index 80f07a29538..a62e180c9f5 100644
--- a/sys/i386/i386/pmap.c
+++ b/sys/i386/i386/pmap.c
@@ -392,7 +392,6 @@ pmap_bootstrap(vm_paddr_t firstaddr)
 #ifdef PAE
 	kernel_pmap->pm_pdpt = (pdpt_entry_t *) (KERNBASE + (u_int)IdlePDPT);
 #endif
-	kernel_pmap->pm_root = NULL;
 	CPU_FILL(&kernel_pmap->pm_active);	/* don't allow deactivation */
 	TAILQ_INIT(&kernel_pmap->pm_pvchunk);