diff --git a/generic_test.go b/generic_test.go
index 63b4100455..0f7a80d7a6 100644
--- a/generic_test.go
+++ b/generic_test.go
@@ -3,12 +3,11 @@ package testcontainers
 import (
 	"context"
 	"errors"
-	"fmt"
 	"io"
 	"net/http"
 	"os"
 	stdexec "os/exec"
-	"regexp"
+	"strings"
 	"sync"
 	"testing"
 
@@ -145,9 +144,6 @@ func TestWithStartupCommand(t *testing.T) {
 }
 
 func TestGenericReusableContainerInSubprocess(t *testing.T) {
-	containerIDOnce := sync.Once{}
-	containerID := ""
-
 	wg := sync.WaitGroup{}
 	wg.Add(10)
 	for i := 0; i < 10; i++ {
@@ -157,17 +153,9 @@ func TestGenericReusableContainerInSubprocess(t *testing.T) {
 			// create containers in subprocesses, as "go test ./..." does.
 			output := createReuseContainerInSubprocess(t)
 
-			// check is container reused.
-			re := regexp.MustCompile(fmt.Sprintf("%s(.*)%s",
-				"🚧 Waiting for container id ",
-				regexp.QuoteMeta(fmt.Sprintf(" image: %s", nginxDelayedImage)),
-			))
-			match := re.FindStringSubmatch(output)
-
-			containerIDOnce.Do(func() {
-				containerID = match[1]
-			})
-			require.Equal(t, containerID, match[1])
+			// check is reuse container with WaitingFor work correctly.
+			contains := strings.Contains(output, "🚧 Waiting for container id")
+			require.True(t, contains)
 		}()
 	}