diff --git a/signing/src/main/java/com/topjohnwu/signing/SignBoot.java b/signing/src/main/java/com/topjohnwu/signing/SignBoot.java
index c500c7a2a..ce1494ff5 100644
--- a/signing/src/main/java/com/topjohnwu/signing/SignBoot.java
+++ b/signing/src/main/java/com/topjohnwu/signing/SignBoot.java
@@ -30,6 +30,9 @@ import java.util.Arrays;
 
 public class SignBoot {
 
+    private static final int BOOT_IMAGE_HEADER_V1_RECOVERY_DTBO_SIZE_OFFSET = 1632;
+    private static final int BOOT_IMAGE_HEADER_V2_DTB_SIZE_OFFSET = 1648;
+
     private static class PushBackRWStream extends FilterInputStream {
         private OutputStream out;
         private int pos = 0;
@@ -199,8 +202,6 @@ public class SignBoot {
         private DEROctetString signature;
         private PublicKey publicKey;
         private static final int FORMAT_VERSION = 1;
-        private static final int BOOT_IMAGE_HEADER_V1_RECOVERY_DTBO_SIZE_OFFSET = 1632;
-        private static final int BOOT_IMAGE_HEADER_V2_DTB_SIZE_OFFSET = 1648;
 
         /**
          * Initializes the object for signing an image file