diff --git a/backend/src/apiserver/common/config.go b/backend/src/apiserver/common/config.go
index 62b2fa7c342b..21e1d62a994c 100644
--- a/backend/src/apiserver/common/config.go
+++ b/backend/src/apiserver/common/config.go
@@ -38,6 +38,7 @@ const (
 	SignedURLExpiryTimeSeconds              string = "SIGNED_URL_EXPIRY_TIME_SECONDS"
 	CaBundleMountPath                       string = "ARTIFACT_COPY_STEP_CABUNDLE_MOUNTPATH"
 	CaBundleConfigMapKey                    string = "ARTIFACT_COPY_STEP_CABUNDLE_CONFIGMAP_KEY"
+	CaBundleConfigMapName                   string = "ARTIFACT_COPY_STEP_CABUNDLE_CONFIGMAP_NAME"
 )
 
 func IsPipelineVersionUpdatedByDefault() bool {
diff --git a/backend/src/v2/compiler/argocompiler/common.go b/backend/src/v2/compiler/argocompiler/common.go
index 27363dc8915b..c3c471431443 100644
--- a/backend/src/v2/compiler/argocompiler/common.go
+++ b/backend/src/v2/compiler/argocompiler/common.go
@@ -99,7 +99,7 @@ func GetMLPipelineServicePortGRPC() string {
 // ConfigureCABundle adds CABundle environment variables and volume mounts
 // if CA Bundle env vars are specified.
 func ConfigureCABundle(tmpl *wfapi.Template) {
-	caBundleCfgMapName := os.Getenv("ARTIFACT_COPY_STEP_CABUNDLE_CONFIGMAP_NAME")
+	caBundleCfgMapName := os.Getenv(common.CaBundleConfigMapName)
 	caBundleCfgMapKey := os.Getenv(common.CaBundleConfigMapKey)
 	caBundleMountPath := os.Getenv(common.CaBundleMountPath)
 	if caBundleCfgMapName != "" && caBundleCfgMapKey != "" {