diff --git a/src/main/java/net/knarcraft/bookswithoutborders/listener/SignEventListener.java b/src/main/java/net/knarcraft/bookswithoutborders/listener/SignEventListener.java
index 8ce762f..25e613c 100644
--- a/src/main/java/net/knarcraft/bookswithoutborders/listener/SignEventListener.java
+++ b/src/main/java/net/knarcraft/bookswithoutborders/listener/SignEventListener.java
@@ -203,6 +203,8 @@ public class SignEventListener implements Listener {
         if (encryptedBook != null) {
             EncryptionUtil.markEncrypted(encryptedBook);
             player.getInventory().setItem(hand, encryptedBook);
+        } else {
+            new FormatBuilder(Translatable.ERROR_DECRYPT_FAILED).error(player);
         }
     }
 
@@ -336,7 +338,10 @@ public class SignEventListener implements Listener {
             return false;
         }
         boolean isValid = !getPassword(lines).isBlank() && (lines[3].isBlank() ||
-                EncryptionStyle.getFromString(getCleanLine(lines[3])) != null);
+                ((lines[3].contains(" ") &&
+                        EncryptionStyle.getFromString(getCleanLine(lines[3].split(" ")[0])) != null) ||
+                        EncryptionStyle.getFromString(getCleanLine(lines[3])) != null));
+
         if (markSign) {
             if (isValid) {
                 markLine(lines, 2, PASSWORD_COLOR);