diff --git a/source/tests/fs/fs_sdmc.cpp b/source/tests/fs/fs_sdmc.cpp
index 6ecb27a..9de2159 100644
--- a/source/tests/fs/fs_sdmc.cpp
+++ b/source/tests/fs/fs_sdmc.cpp
@@ -1,4 +1,5 @@
 #include <memory>
+#include <cstring>
 #include <3ds.h>
 
 #include "tests/test.h"
@@ -176,4 +177,4 @@ void TestAll()
 }
 
 } // namespace
-} // namespace
\ No newline at end of file
+} // namespace