diff --git a/tests/e2e/containers/containers.go b/tests/e2e/containers/containers.go
index df247c0db20..a1703b35f67 100644
--- a/tests/e2e/containers/containers.go
+++ b/tests/e2e/containers/containers.go
@@ -5,7 +5,6 @@ import (
 	"context"
 	"fmt"
 	"os"
-	"regexp"
 	"strings"
 	"testing"
 	"time"
@@ -26,8 +25,6 @@ type Manager struct {
 	valResources   map[string][]*dockertest.Resource
 }
 
-var errRegex = regexp.MustCompile(`(E|e)rror`)
-
 // NewManager creates a new Manager instance and initializes
 // all Docker specific utilies. Returns an error if initialiation fails.
 func NewManager(isUpgrade bool, isFork bool) (docker *Manager, err error) {
@@ -91,16 +88,6 @@ func (m *Manager) ExecCmd(t *testing.T, chainId string, validatorIndex int, comm
 				return false
 			}
 
-			errBufString := errBuf.String()
-
-			// Note that this does not match all errors.
-			// This only works if CLI outpurs "Error" or "error"
-			// to stderr.
-			if errRegex.MatchString(errBufString) {
-				t.Log(errBufString)
-				return false
-			}
-
 			if success != "" {
 				return strings.Contains(outBuf.String(), success) || strings.Contains(errBuf.String(), success)
 			}