diff --git a/.travis.yml b/.travis.yml
index 2c2dbd9002..ab1b58f1b4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,6 +25,7 @@ script:
     - jsonlint defs/*/*.json
     - python tools/cointool.py check
     - python tools/support.py check --ignore-missing
+    - cd protob && python check.py
     - python protob/graph.py protob/*.proto
 
 notifications:
diff --git a/protob/check.py b/protob/check.py
new file mode 100755
index 0000000000..95ed433f95
--- /dev/null
+++ b/protob/check.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python3
+from glob import glob
+import sys
+
+error = False
+
+for fn in sorted(glob("messages-*.proto")):
+    with open(fn, "rt") as f:
+        prefix = fn.split(".")[0][9:].capitalize()
+        if prefix in ["Bitcoin", "Bootloader", "Common", "Crypto", "Management"]:
+            continue
+        if prefix == "Nem":
+            prefix = "NEM"
+        for line in f:
+            line = line.strip().split(" ")
+            if line[0] not in ["enum", "message"]:
+                continue
+            if not line[1].startswith(prefix) and not line[1].startswith("Debug" + prefix):
+                print("ERROR:", fn, line[1])
+                error = True
+
+if error:
+    sys.exit(1)
diff --git a/protob/messages-binance.proto b/protob/messages-binance.proto
index 7afa466a5f..95c04a383a 100644
--- a/protob/messages-binance.proto
+++ b/protob/messages-binance.proto
@@ -76,17 +76,17 @@ message BinanceTxRequest {
  * @next Failure
  */
 message BinanceTransferMsg {
-    repeated InputOutput inputs = 1;
-    repeated InputOutput outputs = 2;
+    repeated BinanceInputOutput inputs = 1;
+    repeated BinanceInputOutput outputs = 2;
 
-    message Coin {
-        optional sint64 amount = 1;
-        optional string denom = 2;
+    message BinanceInputOutput {
+        optional string address = 1;
+        repeated BinanceCoin coins = 2;
     }
 
-    message InputOutput {
-        optional string address = 1;
-        repeated Coin coins = 2;
+    message BinanceCoin {
+        optional sint64 amount = 1;
+        optional string denom = 2;
     }
 }
 
@@ -98,28 +98,28 @@ message BinanceTransferMsg {
  */
 message BinanceOrderMsg {
     optional string id = 1;
-    optional OrderType ordertype = 2;
+    optional BinanceOrderType ordertype = 2;
     optional sint64 price = 3;
     optional sint64 quantity = 4;
     optional string sender = 5;
-    optional OrderSide side = 6;
+    optional BinanceOrderSide side = 6;
     optional string symbol = 7;
-    optional TimeInForce timeinforce = 8;
+    optional BinanceTimeInForce timeinforce = 8;
 
-    enum OrderType {
+    enum BinanceOrderType {
         OT_UNKNOWN = 0;
         MARKET = 1;
         LIMIT = 2;
         OT_RESERVED = 3;
     }
 
-    enum OrderSide {
+    enum BinanceOrderSide {
         SIDE_UNKNOWN = 0;
         BUY = 1;
         SELL = 2;
     }
 
-    enum TimeInForce {
+    enum BinanceTimeInForce {
         TIF_UNKNOWN = 0;
         GTE = 1;
         TIF_RESERVED = 2;