diff --git a/firmware/controllers/trigger/trigger_central.txt b/firmware/controllers/trigger/trigger_central.txt
index 585ea2eb26..e19d16440e 100644
--- a/firmware/controllers/trigger/trigger_central.txt
+++ b/firmware/controllers/trigger/trigger_central.txt
@@ -2,7 +2,7 @@
 
 struct_no_prefix trigger_central_s
 
-	int[HW_EVENT_TYPES iterate] hwEventCounters;Counter of hardware events since ECU start
+	int[HW_EVENT_TYPES iterate] hwEventCounters;Hardware events since boot
 
 int vvtCamCounter
 
diff --git a/java_tools/configuration_definition/src/main/java/com/rusefi/ReaderState.java b/java_tools/configuration_definition/src/main/java/com/rusefi/ReaderState.java
index 9520421457..43d958096f 100644
--- a/java_tools/configuration_definition/src/main/java/com/rusefi/ReaderState.java
+++ b/java_tools/configuration_definition/src/main/java/com/rusefi/ReaderState.java
@@ -24,6 +24,8 @@ import static com.rusefi.output.JavaSensorsConsumer.quote;
  * 12/19/18
  */
 public class ReaderState {
+    // https://github.com/rusefi/web_backend/issues/166
+    private static final int MSQ_LENGTH_LIMIT = 34;
     // used to update other files
     public List<String> inputFiles = new ArrayList<>();
 
@@ -310,7 +312,10 @@ public class ReaderState {
     @NotNull
     private static String getCommentWithIndex(ConfigField cf, int i) {
         String unquoted = unquote(cf.getCommentOrName());
-        return quote(unquoted + " " + i);
+        String string = unquoted + " " + i;
+        if (string.length() > MSQ_LENGTH_LIMIT)
+            throw new IllegalStateException("[" + string + "] is too long for rusEFI online");
+        return quote(string);
     }
 
     public String getHeader() {