diff --git a/node/src/main/kotlin/net/corda/node/services/config/ConfigUtilities.kt b/node/src/main/kotlin/net/corda/node/services/config/ConfigUtilities.kt
index b2dc5dd773..3f4eab0295 100644
--- a/node/src/main/kotlin/net/corda/node/services/config/ConfigUtilities.kt
+++ b/node/src/main/kotlin/net/corda/node/services/config/ConfigUtilities.kt
@@ -36,6 +36,7 @@ object ConfigHelper {
     private const val UPPERCASE_PROPERTY_PREFIX = "CORDA."
 
     private val log = LoggerFactory.getLogger(javaClass)
+    @Suppress("LongParameterList")
     fun loadConfig(baseDirectory: Path,
                    configFile: Path = baseDirectory / "node.conf",
                    allowMissingConfig: Boolean = false,
@@ -88,7 +89,13 @@ object ConfigHelper {
         return ConfigFactory.parseMap(
                 toProperties()
                 .mapKeys {
-                    var newKey = (it.key as String)
+                    val original = it.key as String
+
+                    if (original == original.toUpperCase()){
+                        return@mapKeys original
+                    }
+
+                    var newKey = original
                                 .replace('_', '.')
                                 .replace(UPPERCASE_PROPERTY_PREFIX, CORDA_PROPERTY_PREFIX)
 
@@ -175,4 +182,4 @@ fun MutualSslConfiguration.configureDevKeyAndTrustStores(myLegalName: CordaX500N
             else -> throw IllegalArgumentException("CryptoService not supported.")
         }
     }
-}
\ No newline at end of file
+}