diff --git a/src/field_poison.c b/src/field_poison.c
index 34640489e..ddba9b255 100644
--- a/src/field_poison.c
+++ b/src/field_poison.c
@@ -62,7 +62,7 @@ static void Task_TryFieldPoisonWhiteOut(u8 taskId)
             {
                 FaintFromFieldPoison(tPartyId);
                 ShowFieldMessage(gText_PkmnFainted3);
-                data[0]++;
+                tState++;
                 return;
             }
         }