diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 734f1770..35e477a6 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -127,3 +127,12 @@ jobs:
     - name: Build the Docker image
       run: |
         docker build --build-arg VERSION=dev . --file Dockerfile -t go-dnscollector
+
+  docker32b:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Build the Docker image
+      run: |
+        docker build --build-arg VERSION=dev . --platform linux/386 --file Dockerfile -t go-dnscollector
diff --git a/dnsutils/message.go b/dnsutils/message.go
index 83c92377..7d511fb0 100644
--- a/dnsutils/message.go
+++ b/dnsutils/message.go
@@ -811,7 +811,7 @@ func (dm *DNSMessage) ToDNSTap(extended bool) ([]byte, error) {
 	if dm.NetworkInfo.ResponsePort != "-" {
 		if port, err := strconv.Atoi(dm.NetworkInfo.ResponsePort); err != nil {
 			return nil, err
-		} else if port < 0 || port > math.MaxUint32 {
+		} else if port < 0 || port > 65535 {
 			return nil, errors.New("invalid response port value")
 		} else {
 			rport = uint32(port)
@@ -821,7 +821,7 @@ func (dm *DNSMessage) ToDNSTap(extended bool) ([]byte, error) {
 	if dm.NetworkInfo.QueryPort != "-" {
 		if port, err := strconv.Atoi(dm.NetworkInfo.QueryPort); err != nil {
 			return nil, err
-		} else if port < 0 || port > math.MaxUint32 {
+		} else if port < 0 || port > 65535 {
 			return nil, errors.New("invalid query port value")
 		} else {
 			qport = uint32(port)