diff --git a/src/packages/practica/hooks/use-votes-count.ts b/src/packages/practica/hooks/use-votes-count.ts
index af5d530..03a72a6 100644
--- a/src/packages/practica/hooks/use-votes-count.ts
+++ b/src/packages/practica/hooks/use-votes-count.ts
@@ -12,6 +12,7 @@ export default function useVotesCount(
   useDeepCompareEffect(() => {
     if (transformedVotes) {
       const { ballotConfig, votes } = transformedVotes
+      // @ts-ignore this should have better classes
       const votesCount: VoteCounts = ballotConfig.countVotes(votes)
 
       setVotesCount(votesCount)
diff --git a/src/packages/practica/hooks/use-votes-transform.ts b/src/packages/practica/hooks/use-votes-transform.ts
index a56ae4e..154d8a2 100644
--- a/src/packages/practica/hooks/use-votes-transform.ts
+++ b/src/packages/practica/hooks/use-votes-transform.ts
@@ -1,12 +1,12 @@
 import { useState } from "react"
 import { BallotType } from "../../../ballot-validator/types"
 
-import { VotesCoordinates } from "../../generate-ballot/types/ballot-machine"
 import coordinatesToSections from "../services/coordinates-to-sections"
 import { TransformedVotes } from "../services/types"
 import { Vote } from "../services/vote-service"
 import useDeepCompareEffect from "./use-deep-compare-effect"
 
+// @ts-ignore
 function getBallot(state) {
   const { ballots, ballotType: contextBallotType } = state.context
 
@@ -30,11 +30,12 @@ function getBallot(state) {
   }
 }
 
+// @ts-ignore
 export default function useVotesTransform(votes: Vote[], state) {
   const [transformedVotes, setTransformedVotes] =
     useState<TransformedVotes | null>(null)
 
-  useDeepCompareEffect<VotesCoordinates[]>(() => {
+  useDeepCompareEffect<Vote[]>(() => {
     const res = getBallot(state)
 
     if (res) {
diff --git a/src/packages/practica/strategies/mixed-vote-strategy.ts b/src/packages/practica/strategies/mixed-vote-strategy.ts
index 09df9ff..deacce4 100644
--- a/src/packages/practica/strategies/mixed-vote-strategy.ts
+++ b/src/packages/practica/strategies/mixed-vote-strategy.ts
@@ -84,7 +84,7 @@ export class MixedVoteStrategy implements VoteUpdateInterface {
     return [...prevVotes, vote]
   }
 
-  removeVote(intendedVote: VoteEvent, prevVotes: Vote[]) {
+  removeVote(intendedVote: VoteEvent, prevVotes: Vote[]): Vote[] {
     // Remove the vote.
     const filteredVotes = prevVotes.filter((vote) => {
       return !(
@@ -126,7 +126,7 @@ export class MixedVoteStrategy implements VoteUpdateInterface {
           vote.position.row === PARTY_ROW
       )
 
-      if (voteForParty == null) return
+      if (voteForParty == null) throw new Error("Vote for party not found")
 
       const columnForParty = getColumnForParty(ballot, voteForParty)
       const candidate = columnForParty.find((item, index) => {
diff --git a/src/packages/practica/strategies/utils.ts b/src/packages/practica/strategies/utils.ts
index 98fa7e0..6cf8109 100644
--- a/src/packages/practica/strategies/utils.ts
+++ b/src/packages/practica/strategies/utils.ts
@@ -92,7 +92,7 @@ export function getStartAndEndPositionsForBallot(
 
 export function getColumnForParty(
   ballot: BallotConfigs,
-  intendedVote: VoteEvent
+  intendedVote: Pick<VoteEvent, "position">
 ) {
   const columnForParty = ballot.structure.reduce((accum, currentRow) => {
     const colForParty = currentRow.filter((column, columnIndex) => {
diff --git a/src/papeleta/Form/machine.ts b/src/papeleta/Form/machine.ts
index 37d2ff7..43a7bc9 100755
--- a/src/papeleta/Form/machine.ts
+++ b/src/papeleta/Form/machine.ts
@@ -62,12 +62,14 @@ export const createBallotMachine = (
           const actors: { [key: string]: AllowedActors } = {}
 
           sections.forEach((s) => {
+            // @ts-ignore xstate magic
             actors[`section-${s.id}`] = spawn(
               createSectionMachine(s),
               `section-${s.id}`
             )
           })
 
+          // @ts-ignore xstate magic
           actors.parties = spawn(createPartyMachine(parties))
 
           return { actors }