diff --git a/Sources/7zError.swift b/Sources/7zError.swift
index 70bd936e..3fc88cbd 100644
--- a/Sources/7zError.swift
+++ b/Sources/7zError.swift
@@ -39,4 +39,5 @@ public enum SevenZipError: Error {
     case noPackInfoFound
     case streamOverread
     case dataIsUnavailable
+    case encryptionNotSupported
 }
diff --git a/Sources/7zFolder.swift b/Sources/7zFolder.swift
index 2ab478ec..89db5b3a 100644
--- a/Sources/7zFolder.swift
+++ b/Sources/7zFolder.swift
@@ -166,7 +166,11 @@ class SevenZipFolder {
                 try lzmaDecoder.decodeLZMA(unpackSize, properties[0], dictionarySize)
                 decodedData = Data(bytes: lzmaDecoder.out)
             } else {
-                throw SevenZipError.compressionNotSupported
+                if coder.id[0] == 0x06 {
+                    throw SevenZipError.encryptionNotSupported
+                } else {
+                    throw SevenZipError.compressionNotSupported
+                }
             }
 
             guard decodedData.count == unpackSize