diff --git a/desmume/src/NDSSystem.cpp b/desmume/src/NDSSystem.cpp
index e493e2663..242b00a61 100644
--- a/desmume/src/NDSSystem.cpp
+++ b/desmume/src/NDSSystem.cpp
@@ -302,20 +302,12 @@ void debug()
 
 #define DSGBA_EXTENSTION ".ds.gba"
 #define DSGBA_LOADER_SIZE 512
-#define NDS_MAGIC_NUMBER_OFFSET 192
 enum
 {
 	ROM_NDS = 0,
 	ROM_DSGBA
 };
 
-static int NDS_check_ds_rom(u8 * data)
-{
-   const char ds_magic[7] = "\044\377\256Qi\232";
-
-   return memcmp(data+NDS_MAGIC_NUMBER_OFFSET, ds_magic, 6);
-}
-
 int NDS_LoadROM( const char *filename, int bmtype, u32 bmsize,
                  const char *cflash_disk_image_file)
 {
@@ -390,14 +382,6 @@ int NDS_LoadROM( const char *filename, int bmtype, u32 bmsize,
    reader->DeInit(file);
    MMU_unsetRom();
    NDS_SetROM(data, mask);
-
-   if (NDS_check_ds_rom(data) != 0) {
-      MMU_unsetRom();
-      free(noext);
-      free(data);
-      return -1;
-   }
-
    NDS_Reset();
 
    /* I guess any directory can be used