diff --git a/java_tools/configuration_definition/src/com/rusefi/ConfigDefinition.java b/java_tools/configuration_definition/src/com/rusefi/ConfigDefinition.java
index 954d39e71f..85d3b878cd 100644
--- a/java_tools/configuration_definition/src/com/rusefi/ConfigDefinition.java
+++ b/java_tools/configuration_definition/src/com/rusefi/ConfigDefinition.java
@@ -120,7 +120,7 @@ public class ConfigDefinition {
 
         String line;
         while ((line = fr.readLine()) != null) {
-            line = VariableRegistry.INSTANCE.processLine(line);
+            line = VariableRegistry.INSTANCE.applyVariables(line);
             fw.write(line + ConfigDefinition.EOL);
         }
         fw.close();
@@ -149,7 +149,7 @@ public class ConfigDefinition {
                 prefix.append(line + ConfigDefinition.EOL);
 
             if (isAfterEndTag)
-                postfix.append(VariableRegistry.INSTANCE.processLine(line) + ConfigDefinition.EOL);
+                postfix.append(VariableRegistry.INSTANCE.applyVariables(line) + ConfigDefinition.EOL);
         }
         r.close();
         return new TsFileContent(prefix.toString(), postfix.toString());
@@ -206,7 +206,7 @@ public class ConfigDefinition {
                 String customSize = line.substring(0, index);
 
                 String tunerStudioLine = line.substring(index).trim();
-                tunerStudioLine = VariableRegistry.INSTANCE.processLine(tunerStudioLine);
+                tunerStudioLine = VariableRegistry.INSTANCE.applyVariables(tunerStudioLine);
                 int size;
                 try {
                     size = Integer.parseInt(customSize);
diff --git a/java_tools/configuration_definition/src/com/rusefi/VariableRegistry.java b/java_tools/configuration_definition/src/com/rusefi/VariableRegistry.java
index fd711748a2..3e3f0d7eca 100644
--- a/java_tools/configuration_definition/src/com/rusefi/VariableRegistry.java
+++ b/java_tools/configuration_definition/src/com/rusefi/VariableRegistry.java
@@ -30,7 +30,11 @@ public class VariableRegistry extends TreeMap<String, String> {
         super(String.CASE_INSENSITIVE_ORDER);
     }
 
-    public String processLine(String line) {
+    /**
+     * This methos replaces variables references like @@var@@ with actual values
+     * An exception is thrown if we do not have such variable
+     */
+    public String applyVariables(String line) {
         Matcher m;
         while ((m = VAR.matcher(line)).find()) {
             String key = m.group(2);
diff --git a/java_tools/configuration_definition/src/com/rusefi/test/VariableRegistryTest.java b/java_tools/configuration_definition/src/com/rusefi/test/VariableRegistryTest.java
index 294f14631a..ace45193d0 100644
--- a/java_tools/configuration_definition/src/com/rusefi/test/VariableRegistryTest.java
+++ b/java_tools/configuration_definition/src/com/rusefi/test/VariableRegistryTest.java
@@ -15,9 +15,9 @@ public class VariableRegistryTest {
 
         VariableRegistry.INSTANCE.register("var", 256);
 
-        assertEquals("256", VariableRegistry.INSTANCE.processLine("@@var@@"));
-        assertEquals("ab256", VariableRegistry.INSTANCE.processLine("ab@@var@@"));
-        assertEquals("ab256cd", VariableRegistry.INSTANCE.processLine("ab@@var@@cd"));
-        assertEquals("aa256qwe100fff", VariableRegistry.INSTANCE.processLine("aa@@var@@qwe@@var_hex@@fff"));
+        assertEquals("256", VariableRegistry.INSTANCE.applyVariables("@@var@@"));
+        assertEquals("ab256", VariableRegistry.INSTANCE.applyVariables("ab@@var@@"));
+        assertEquals("ab256cd", VariableRegistry.INSTANCE.applyVariables("ab@@var@@cd"));
+        assertEquals("aa256qwe100fff", VariableRegistry.INSTANCE.applyVariables("aa@@var@@qwe@@var_hex@@fff"));
     }
 }