diff --git a/src/main/kotlin/mdnet/netty/ApplicationNetty.kt b/src/main/kotlin/mdnet/netty/ApplicationNetty.kt
index 60321e2..4e1cbdd 100644
--- a/src/main/kotlin/mdnet/netty/ApplicationNetty.kt
+++ b/src/main/kotlin/mdnet/netty/ApplicationNetty.kt
@@ -221,8 +221,12 @@ class Netty(
                             "dropHostname",
                             object : ChannelInboundHandlerAdapter() {
                                 private val hostToTest = remoteSettings.url.authority.let {
-                                    println(it)
-                                    it.substring(0, it.lastIndexOf(":"))
+                                    val colon = it.lastIndexOf(":")
+                                    if (colon != -1) {
+                                        it.substring(0, colon)
+                                    } else {
+                                        it
+                                    }
                                 }
 
                                 override fun userEventTriggered(ctx: ChannelHandlerContext, evt: Any) {