diff --git a/deps/libpietendo b/deps/libpietendo
index 3c68ffe..89204ee 160000
--- a/deps/libpietendo
+++ b/deps/libpietendo
@@ -1 +1 @@
-Subproject commit 3c68ffeeb903d286647823ea1676d1cb7ede939b
+Subproject commit 89204ee499bfb3e4d1017c4a1fe2d29b2e70ff37
diff --git a/src/GameCardProcess.cpp b/src/GameCardProcess.cpp
index 599b22f..c415aed 100644
--- a/src/GameCardProcess.cpp
+++ b/src/GameCardProcess.cpp
@@ -120,7 +120,7 @@ void nstool::GameCardProcess::importHeader()
 	memcpy(mHdrSignature.data(), hdr_ptr->signature.data(), mHdrSignature.size());
 	
 	// decrypt extended header
-	byte_t xci_header_key_index = hdr_ptr->header.key_flag & 7;
+	byte_t xci_header_key_index = hdr_ptr->header.key_flag & 0xf;
 	if (mKeyCfg.xci_header_key.find(xci_header_key_index) != mKeyCfg.xci_header_key.end())
 	{
 		pie::hac::GameCardUtil::decryptXciHeader(&hdr_ptr->header, mKeyCfg.xci_header_key[xci_header_key_index].data());