diff --git a/data/abilities.js b/data/abilities.js
index 8e28430603..3b0c45c1eb 100644
--- a/data/abilities.js
+++ b/data/abilities.js
@@ -2268,6 +2268,7 @@ exports.BattleAbilities = {
 	},
 	"serenegrace": {
 		shortDesc: "This Pokemon's moves have their secondary effect chance doubled.",
+		onModifyMovePriority: -2,
 		onModifyMove: function (move) {
 			if (move.secondaries && move.id !== 'secretpower') {
 				this.debug('doubling secondary chance');
diff --git a/data/items.js b/data/items.js
index a5b90892eb..0a0e53e862 100644
--- a/data/items.js
+++ b/data/items.js
@@ -2180,6 +2180,7 @@ exports.BattleItems = {
 			basePower: 30,
 			volatileStatus: 'flinch'
 		},
+		onModifyMovePriority: -1,
 		onModifyMove: function (move) {
 			if (move.category !== "Status") {
 				if (!move.secondaries) move.secondaries = [];
@@ -3570,6 +3571,7 @@ exports.BattleItems = {
 			basePower: 30,
 			volatileStatus: 'flinch'
 		},
+		onModifyMovePriority: -1,
 		onModifyMove: function (move) {
 			if (move.category !== "Status") {
 				if (!move.secondaries) move.secondaries = [];