diff --git a/src/common/NodeSpecs/prysm/prysm-v1.0.0.json b/src/common/NodeSpecs/prysm/prysm-v1.0.0.json
index 7e7d01b4a..d61acd456 100644
--- a/src/common/NodeSpecs/prysm/prysm-v1.0.0.json
+++ b/src/common/NodeSpecs/prysm/prysm-v1.0.0.json
@@ -113,7 +113,7 @@
     },
     "quicPort": {
       "displayName": "QUIC port",
-      "cliConfigPrefix": ["p2p-quic-port="],
+      "cliConfigPrefix": ["--p2p-quic-port="],
       "uiControl": {
         "type": "text"
       },