diff --git a/java_tools/configuration_definition_base/src/main/java/com/rusefi/ldmp/LiveDataProcessor.java b/java_tools/configuration_definition_base/src/main/java/com/rusefi/ldmp/LiveDataProcessor.java
index edf18603d7..21cbd60812 100644
--- a/java_tools/configuration_definition_base/src/main/java/com/rusefi/ldmp/LiveDataProcessor.java
+++ b/java_tools/configuration_definition_base/src/main/java/com/rusefi/ldmp/LiveDataProcessor.java
@@ -195,8 +195,10 @@ public class LiveDataProcessor {
                     state.addDestination(fragmentDialogConsumer);
                 }
 
-                if (extraPrepend != null)
+                if (extraPrepend != null) {
+                    log.info("extraPrepend=" + extraPrepend);
                     state.addPrepend(extraPrepend);
+                }
                 state.addPrepend(prepend);
                 state.addCHeaderDestination(outFolder + File.separator + name + "_generated.h");