diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 0f616b4..420ebcc 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -13,7 +13,8 @@ jobs:
         flags: [ "", "-race" ]
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
+    - run: git fetch origin master
     
     - name: Check if must run
       id: check
@@ -45,7 +46,8 @@ jobs:
     needs: goTest
     runs-on: ubuntu-18.04
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
+      - run: git fetch origin master
 
       - name: Check if must run
         id: check
diff --git a/.github/workflows/gomobile.yml b/.github/workflows/gomobile.yml
index 1643811..8ac95c1 100644
--- a/.github/workflows/gomobile.yml
+++ b/.github/workflows/gomobile.yml
@@ -17,11 +17,11 @@ jobs:
       id: build
       run: |
         mkdir -p /tmp/builds
-        docker pull ed255/gomobile-android:latest
+        docker pull ed255/gomobile-android:API29-noemu
         docker run \
           --mount type=bind,source=$PWD,target=/root/iden3-mobile,readonly \
           --mount type=bind,source=/tmp/builds,target=/builds \
-            ed255/gomobile-android:latest \
+            ed255/gomobile-android:API29-noemu \
             /bin/bash -c 'set -ex && \
               cd /root/iden3-mobile/go/iden3mobile && \
               mkdir /tmp/build && \
diff --git a/.github/workflows/lint-go.yml b/.github/workflows/lint-go.yml
new file mode 100644
index 0000000..9982d58
--- /dev/null
+++ b/.github/workflows/lint-go.yml
@@ -0,0 +1,31 @@
+on: [ pull_request ]
+name: Lint
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - run: git fetch origin master
+    
+      - name: Check if must run
+        id: check
+        run: |
+          git diff origin/master -- go > changes
+          if [ -s changes ]; then
+              echo ::set-output name=shouldRun::yes
+              echo "The Go code has changed. The linter will be executed."
+          else
+              echo "The Go code has NOT changed. The linter will NOT be executed."
+          fi
+  
+      - name: Install Go
+        if: steps.check.outputs.shouldRun == 'yes'
+        uses: actions/setup-go@v1
+        with:
+          go-version: 1.14.x
+      
+      - name: Lint
+        if: steps.check.outputs.shouldRun == 'yes'
+        run: |
+          curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.24.0
+          cd go && $(go env GOPATH)/bin/golangci-lint run
diff --git a/go/iden3mobile/mobilearrays.go b/go/iden3mobile/mobilearrays.go
index 3b0c113..53b9eb6 100644
--- a/go/iden3mobile/mobilearrays.go
+++ b/go/iden3mobile/mobilearrays.go
@@ -1,18 +1,10 @@
 package iden3mobile
 
-import (
-	"github.com/iden3/go-iden3-core/merkletree"
-)
-
 // TODO. HAVE A LOOK AT CODE GEN
 type BytesArray struct {
 	array [][]byte
 }
 
-type byteEntrier struct {
-	entry *merkletree.Entry
-}
-
 func NewBytesArray() *BytesArray {
 	return &BytesArray{
 		array: make([][]byte, 0),
@@ -30,7 +22,3 @@ func (ba *BytesArray) Get(i int) []byte {
 func (ba *BytesArray) Append(bs []byte) {
 	ba.array = append(ba.array, bs)
 }
-
-func (e *byteEntrier) Entry() *merkletree.Entry {
-	return e.entry
-}