diff --git a/core/src/com/riiablo/mpq_bytebuf/MPQFileHandle.java b/core/src/com/riiablo/mpq_bytebuf/MPQFileHandle.java
index e12c4762..06e3250b 100644
--- a/core/src/com/riiablo/mpq_bytebuf/MPQFileHandle.java
+++ b/core/src/com/riiablo/mpq_bytebuf/MPQFileHandle.java
@@ -7,10 +7,11 @@ import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import org.apache.commons.io.FilenameUtils;
-import org.apache.commons.lang3.StringUtils;
 
 import com.badlogic.gdx.files.FileHandle;
 
+import com.riiablo.mpq_bytebuf.util.Decryptor;
+
 public final class MPQFileHandle extends FileHandle {
   public final MPQ mpq;
   public final String filename;
@@ -34,9 +35,8 @@ public final class MPQFileHandle extends FileHandle {
   }
 
   MPQFileHandle(MPQ mpq, String filename, long key, int offset, short locale, MPQ.Entry entry) {
-    assert !StringUtils.contains(filename, '/');
     this.mpq = mpq;
-    this.filename = filename;
+    this.filename = Decryptor.LookupTable.fix(filename);
     this.key = key;
     this.offset = offset;
     this.locale = locale;
diff --git a/core/src/com/riiablo/mpq_bytebuf/util/Decryptor.java b/core/src/com/riiablo/mpq_bytebuf/util/Decryptor.java
index a2b99fe6..63c7c0ad 100644
--- a/core/src/com/riiablo/mpq_bytebuf/util/Decryptor.java
+++ b/core/src/com/riiablo/mpq_bytebuf/util/Decryptor.java
@@ -310,5 +310,12 @@ public final class Decryptor {
 
       return seed1;
     }
+
+    public static String fix(String str) {
+      final byte[] byteMap = LookupTable.byteMap;
+      final byte[] bytes = str.getBytes(StandardCharsets.US_ASCII);
+      for (int i = 0, s = bytes.length; i < s; i++) bytes[i] = byteMap[bytes[i]];
+      return new String(bytes, StandardCharsets.US_ASCII);
+    }
   }
 }