diff --git a/theodolite/src/main/kotlin/theodolite/patcher/EnvVarPatcher.kt b/theodolite/src/main/kotlin/theodolite/patcher/EnvVarPatcher.kt
index 080afb055c0877bac0e767163dc5a028d535c836..416aec74a3af9b74594f5e6cd018682bf91cbf63 100644
--- a/theodolite/src/main/kotlin/theodolite/patcher/EnvVarPatcher.kt
+++ b/theodolite/src/main/kotlin/theodolite/patcher/EnvVarPatcher.kt
@@ -12,7 +12,7 @@ import io.fabric8.kubernetes.api.model.apps.Deployment
  * @property container Container to be patched.
  * @property variableName Name of the environment variable to be patched.
  */
-open class EnvVarPatcher(
+class EnvVarPatcher(
     private val k8sResource: KubernetesResource,
     private val container: String,
     private val variableName: String