diff --git a/LaunchServer/src/main/java/pro/gravit/launchserver/binary/LauncherBinary.java b/LaunchServer/src/main/java/pro/gravit/launchserver/binary/LauncherBinary.java
index d09db69c..238e9de3 100644
--- a/LaunchServer/src/main/java/pro/gravit/launchserver/binary/LauncherBinary.java
+++ b/LaunchServer/src/main/java/pro/gravit/launchserver/binary/LauncherBinary.java
@@ -41,8 +41,7 @@ public void init() {
 
     public final boolean sync() throws IOException {
         boolean exists = exists();
-        if (sign != null)
-        	CommonHelper.removeExc(sign);
+        CommonHelper.removeExc(sign);
         if (binary != null) {
         	CommonHelper.removeExc(binary.getBytes());
         	CommonHelper.removeExc(binary.getDigest());
@@ -50,9 +49,11 @@ public final boolean sync() throws IOException {
         binary = exists ? new DigestBytesHolder(IOHelper.read(syncBinaryFile), SecurityHelper.DigestAlgorithm.SHA512) : null;
         sign = exists ? SecurityHelper.sign(IOHelper.read(syncBinaryFile), server.privateKey) : null;
     	CommonHelper.addExc(sign);
-    	CommonHelper.addExc(binary.getBytes());
-    	CommonHelper.addExc(binary.getDigest());
-        return exists;
+    	if (binary != null) {
+    		CommonHelper.addExc(binary.getBytes());
+    		CommonHelper.addExc(binary.getDigest());
+    	}
+    	return exists;
     }
 
     public static Path resolve(LaunchServer server, String ext) {
diff --git a/LauncherCore/src/main/java/pro/gravit/utils/helper/CommonHelper.java b/LauncherCore/src/main/java/pro/gravit/utils/helper/CommonHelper.java
index 18e4a1de..b0000ead 100644
--- a/LauncherCore/src/main/java/pro/gravit/utils/helper/CommonHelper.java
+++ b/LauncherCore/src/main/java/pro/gravit/utils/helper/CommonHelper.java
@@ -143,12 +143,14 @@ public static GsonBuilder newBuilder() {
     }
 
     public static void addExc(byte[] exclusion) {
+    	if (exclusion == null) return;
     	JsonArray add = new JsonArray(exclusion.length);
     	for (byte b : exclusion) add.add(new JsonPrimitive(b));
     	ByteArrayToBase64TypeAdapter.exclusions.put(exclusion, add);
     }
 
     public static void removeExc(byte[] exclusion) {
+    	if (exclusion == null) return;
     	ByteArrayToBase64TypeAdapter.exclusions.remove(exclusion);
     }