diff --git a/java_console/shared_io/src/main/java/com/rusefi/SignatureHelper.java b/java_console/shared_io/src/main/java/com/rusefi/SignatureHelper.java
index 1393a09a7e..6860fb7594 100644
--- a/java_console/shared_io/src/main/java/com/rusefi/SignatureHelper.java
+++ b/java_console/shared_io/src/main/java/com/rusefi/SignatureHelper.java
@@ -17,7 +17,7 @@ public class SignatureHelper {
     public static final char SLASH = '/';
 
     public static Pair<String, String> getUrl(String signature) {
-        if (!signature.startsWith(PREFIX))
+        if (signature == null || !signature.startsWith(PREFIX))
             return null;
         signature = signature.substring(PREFIX.length()).trim();
         String[] elements = signature.split("\\.");