diff --git a/data/battle_scripts_1.s b/data/battle_scripts_1.s
index 13d3c09012..23c1e10aa9 100644
--- a/data/battle_scripts_1.s
+++ b/data/battle_scripts_1.s
@@ -5776,6 +5776,7 @@ BattleScript_LeechSeedTurnDrainHealBlock::
 BattleScript_LeechSeedTurnDrainRecovery::
 	call BattleScript_LeechSeedTurnDrain
 BattleScript_LeechSeedTurnDrainGainHp:
+	orword gHitMarker, HITMARKER_IGNORE_SUBSTITUTE | HITMARKER_PASSIVE_DAMAGE
 	healthbarupdate BS_TARGET
 	datahpupdate BS_TARGET
 	printfromtable gLeechSeedStringIds
diff --git a/test/battle/move_effect/leech_seed.c b/test/battle/move_effect/leech_seed.c
index 56da50a12b..49f963f416 100644
--- a/test/battle/move_effect/leech_seed.c
+++ b/test/battle/move_effect/leech_seed.c
@@ -66,11 +66,11 @@ DOUBLE_BATTLE_TEST("Leech Seed will drain HP based on speed of the drained mon")
         OPPONENT(SPECIES_WYNAUT) { Speed(3); }
         OPPONENT(SPECIES_WOBBUFFET) { Speed(4); }
     } WHEN {
-        TURN { 
-            MOVE(playerLeft, MOVE_LEECH_SEED, target: opponentLeft); 
-            MOVE(playerRight, MOVE_LEECH_SEED, target: opponentRight); 
-            MOVE(opponentLeft, MOVE_LEECH_SEED, target: playerLeft); 
-            MOVE(opponentRight, MOVE_LEECH_SEED, target: playerRight); 
+        TURN {
+            MOVE(playerLeft, MOVE_LEECH_SEED, target: opponentLeft);
+            MOVE(playerRight, MOVE_LEECH_SEED, target: opponentRight);
+            MOVE(opponentLeft, MOVE_LEECH_SEED, target: playerLeft);
+            MOVE(opponentRight, MOVE_LEECH_SEED, target: playerRight);
         }
     } SCENE {
         ANIMATION(ANIM_TYPE_MOVE, MOVE_LEECH_SEED, opponentRight);
@@ -88,6 +88,24 @@ DOUBLE_BATTLE_TEST("Leech Seed will drain HP based on speed of the drained mon")
     }
 }
 
+SINGLE_BATTLE_TEST("Leech Seeded recovers health through Substitute")
+{
+    GIVEN {
+        PLAYER(SPECIES_WYNAUT);
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(player, MOVE_SUBSTITUTE); }
+        TURN { MOVE(player, MOVE_LEECH_SEED); }
+        TURN {}
+    } SCENE {
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_SUBSTITUTE, player);
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_LEECH_SEED, player);
+        HP_BAR(player);
+        HP_BAR(opponent);
+        HP_BAR(player);
+    }
+}
+
 TO_DO_BATTLE_TEST("Leech Seed doesn't affect already seeded targets")
 TO_DO_BATTLE_TEST("Leech Seed's effect is paused until a new battler replaces the original user's position") // Faint, can't be replaced, then revived.
 TO_DO_BATTLE_TEST("Leech Seed's effect pause still prevents it from being seeded again")