diff --git a/pkg/cluster/streams.go b/pkg/cluster/streams.go
index bf9be3fb4..847f52d77 100644
--- a/pkg/cluster/streams.go
+++ b/pkg/cluster/streams.go
@@ -2,6 +2,7 @@ package cluster
 
 import (
 	"context"
+	"crypto/sha1"
 	"encoding/json"
 	"fmt"
 	"reflect"
@@ -330,7 +331,11 @@ func getOutboxTable(tableName string, idColumn *string) zalandov1.EventStreamTab
 }
 
 func getSlotName(dbName, appId string) string {
-	return fmt.Sprintf("%s_%s_%s", constants.EventStreamSourceSlotPrefix, dbName, strings.Replace(appId, "-", "_", -1))
+	name := fmt.Sprintf("%s_%s_%s", constants.EventStreamSourceSlotPrefix, dbName, strings.Replace(appId, "-", "_", -1))
+	if len(name) > 63 {
+		name = fmt.Sprintf("%s_%x", constants.EventStreamSourceSlotPrefix, sha1.Sum([]byte(name)))
+	}
+	return name
 }
 
 func (c *Cluster) getStreamConnection(database, user, appId string) zalandov1.Connection {
diff --git a/pkg/cluster/streams_test.go b/pkg/cluster/streams_test.go
index 934f2bfd4..1a58c9926 100644
--- a/pkg/cluster/streams_test.go
+++ b/pkg/cluster/streams_test.go
@@ -889,3 +889,27 @@ func TestDeleteStreams(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equalf(t, 0, len(streams.Items), "unexpected number of streams found: got %d, but expected none", len(streams.Items))
 }
+
+func TestSlotNameWithinMaxLength(t *testing.T) {
+	dbName := "testdb"
+	appId := "test-app"
+	expected := constants.EventStreamSourceSlotPrefix + "_testdb_test_app"
+	result := getSlotName(dbName, appId)
+	assert.Equal(t, expected, result)
+}
+
+func TestSlotNameExceedsMaxLength(t *testing.T) {
+	dbName := "testdb"
+	appId := "this-is-a-very-long-application-id-that-will-exceed-the-maximum-length"
+	expected := constants.EventStreamSourceSlotPrefix + "_5a300d179c894b672b35bac212eab875d4c4145a"
+	result := getSlotName(dbName, appId)
+	assert.Equal(t, expected, result)
+}
+
+func TestSlotNameWithHyphens(t *testing.T) {
+	dbName := "testdb"
+	appId := "test-app-with-hyphens"
+	expected := constants.EventStreamSourceSlotPrefix + "_testdb_test_app_with_hyphens"
+	result := getSlotName(dbName, appId)
+	assert.Equal(t, expected, result)
+}