diff --git a/internal/kms/vault_sa.go b/internal/kms/vault_sa.go
index 319d63008..33c92f915 100644
--- a/internal/kms/vault_sa.go
+++ b/internal/kms/vault_sa.go
@@ -208,7 +208,7 @@ func (kms *vaultTenantSA) parseConfig(config map[string]interface{}) error {
 	} else if err == nil {
 		kms.vaultConfig[vault.AuthMountPath], err = detectAuthMountPath(vaultAuthPath)
 		if err != nil {
-			return fmt.Errorf("failed to set %s in Vault config: %w", vault.AuthMountPath, err)
+			return fmt.Errorf("failed to set \"vaultAuthPath\" in Vault config: %w", err)
 		}
 	}