diff --git a/src/core/file_sys/card_image.cpp b/src/core/file_sys/card_image.cpp
index 1fec9b0e9..fd00e5457 100644
--- a/src/core/file_sys/card_image.cpp
+++ b/src/core/file_sys/card_image.cpp
@@ -27,7 +27,7 @@ constexpr std::array partition_names{
 
 XCI::XCI(VirtualFile file_)
     : file(std::move(file_)), program_nca_status{Loader::ResultStatus::ErrorXCIMissingProgramNCA},
-      partitions(0x4) {
+      partitions(partition_names.size()) {
     if (file->ReadObject(&header) != sizeof(GamecardHeader)) {
         status = Loader::ResultStatus::ErrorBadXCIHeader;
         return;