diff --git a/stratosphere/ams_mitm/source/utils.cpp b/stratosphere/ams_mitm/source/utils.cpp
index f38ff72ff..5e91fa3cd 100644
--- a/stratosphere/ams_mitm/source/utils.cpp
+++ b/stratosphere/ams_mitm/source/utils.cpp
@@ -708,7 +708,7 @@ void Utils::CreateBlankProdinfoIfNeeded() {
 
         u8 data[data_size];
 
-        memset(&data, p ? g_cal0_backup[data_offset] : g_cal0_storage_backup[data_offset], data_size);
+        memcpy(&data, p ? g_cal0_backup[data_offset] : g_cal0_storage_backup[data_offset], data_size);
 
         u8 hash[0x20];