diff --git a/sys/arm/arm/pmap-v6.c b/sys/arm/arm/pmap-v6.c
--- a/sys/arm/arm/pmap-v6.c
+++ b/sys/arm/arm/pmap-v6.c
@@ -1750,7 +1750,7 @@
 	 */
 	TUNABLE_INT_FETCH("vm.pmap.shpgperproc", &shpgperproc);
 	pv_entry_max = shpgperproc * maxproc + vm_cnt.v_page_count;
-	TUNABLE_INT_FETCH("vm.pmap.pv_entries", &pv_entry_max);
+	TUNABLE_INT_FETCH("vm.pmap.pv_entry_max", &pv_entry_max);
 	pv_entry_max = roundup(pv_entry_max, _NPCPV);
 	pv_entry_high_water = 9 * (pv_entry_max / 10);
 
@@ -3012,7 +3012,7 @@
 		if (ratecheck(&lastprint, &printinterval))
 			printf("Approaching the limit on PV entries, consider "
 			    "increasing either the vm.pmap.shpgperproc or the "
-			    "vm.pmap.pv_entries tunable.\n");
+			    "vm.pmap.pv_entry_max tunable.\n");
 retry:
 	pc = TAILQ_FIRST(&pmap->pm_pvchunk);
 	if (pc != NULL) {
diff --git a/sys/i386/i386/pmap.c b/sys/i386/i386/pmap.c
--- a/sys/i386/i386/pmap.c
+++ b/sys/i386/i386/pmap.c
@@ -998,7 +998,7 @@
 	 */
 	TUNABLE_INT_FETCH("vm.pmap.shpgperproc", &shpgperproc);
 	pv_entry_max = shpgperproc * maxproc + vm_cnt.v_page_count;
-	TUNABLE_INT_FETCH("vm.pmap.pv_entries", &pv_entry_max);
+	TUNABLE_INT_FETCH("vm.pmap.pv_entry_max", &pv_entry_max);
 	pv_entry_max = roundup(pv_entry_max, _NPCPV);
 	pv_entry_high_water = 9 * (pv_entry_max / 10);
 
@@ -2519,7 +2519,7 @@
 		if (ratecheck(&lastprint, &printinterval))
 			printf("Approaching the limit on PV entries, consider "
 			    "increasing either the vm.pmap.shpgperproc or the "
-			    "vm.pmap.pv_entries tunable.\n");
+			    "vm.pmap.pv_entry_max tunable.\n");
 retry:
 	pc = TAILQ_FIRST(&pmap->pm_pvchunk);
 	if (pc != NULL) {
diff --git a/sys/powerpc/booke/pmap.c b/sys/powerpc/booke/pmap.c
--- a/sys/powerpc/booke/pmap.c
+++ b/sys/powerpc/booke/pmap.c
@@ -1069,7 +1069,7 @@
 	TUNABLE_INT_FETCH("vm.pmap.shpgperproc", &shpgperproc);
 	pv_entry_max = shpgperproc * maxproc + vm_cnt.v_page_count;
 
-	TUNABLE_INT_FETCH("vm.pmap.pv_entries", &pv_entry_max);
+	TUNABLE_INT_FETCH("vm.pmap.pv_entry_max", &pv_entry_max);
 	pv_entry_high_water = 9 * (pv_entry_max / 10);
 
 	uma_zone_reserve_kva(pvzone, pv_entry_max);