diff --git a/include/kabufuda/File.hpp b/include/kabufuda/File.hpp
index eb7d4d1..42135cc 100644
--- a/include/kabufuda/File.hpp
+++ b/include/kabufuda/File.hpp
@@ -18,6 +18,9 @@ class File {
       std::array<uint8_t, 2> m_maker;
       uint8_t m_reserved;
       uint8_t m_bannerFlags;
+#if __GNUC__ && !__clang__
+      __attribute__((nonstring))
+#endif
       char m_filename[0x20];
       uint32_t m_modifiedTime;
       uint32_t m_iconAddress;
diff --git a/lib/kabufuda/Directory.cpp b/lib/kabufuda/Directory.cpp
index 20816e0..b1c5b4e 100644
--- a/lib/kabufuda/Directory.cpp
+++ b/lib/kabufuda/Directory.cpp
@@ -107,7 +107,7 @@ File* Directory::getFile(const char* game, const char* maker, const char* filena
       return false;
     }
 
-    return std::strcmp(file.m_filename, filename) == 0;
+    return std::strncmp(file.m_filename, filename, 32) == 0;
   });
 
   if (iter == data.m_files.cend()) {