diff --git a/packages/node_modules/@node-red/nodes/core/network/21-httpin.js b/packages/node_modules/@node-red/nodes/core/network/21-httpin.js
index 26234b737..b458a459c 100644
--- a/packages/node_modules/@node-red/nodes/core/network/21-httpin.js
+++ b/packages/node_modules/@node-red/nodes/core/network/21-httpin.js
@@ -46,7 +46,9 @@ module.exports = function(RED) {
                     isText = true;
                 } else if (parsedType.type !== "application") {
                     isText = false;
-                } else if ((parsedType.subtype !== "octet-stream") && (parsedType.subtype !== "cbor")) {
+                } else if ((parsedType.subtype !== "octet-stream") 
+                    && (parsedType.subtype !== "cbor")
+                    && (parsedType.subtype !== "x-protobuf")) {
                     checkUTF = true;
                 } else {
                     // application/octet-stream or application/cbor