diff --git a/src/disk/minivhd/cwalk.c b/src/disk/minivhd/cwalk.c
index 265de0f72..f0c48427c 100644
--- a/src/disk/minivhd/cwalk.c
+++ b/src/disk/minivhd/cwalk.c
@@ -1,3 +1,6 @@
+#ifndef _FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS 64
+#endif
 #include <assert.h>
 #include <ctype.h>
 #include <stdarg.h>
diff --git a/src/disk/minivhd/minivhd_convert.c b/src/disk/minivhd/minivhd_convert.c
index 231e0f9b8..1de6f4613 100644
--- a/src/disk/minivhd/minivhd_convert.c
+++ b/src/disk/minivhd/minivhd_convert.c
@@ -1,3 +1,6 @@
+#ifndef _FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS 64
+#endif
 #include <stdbool.h>
 #include <stdlib.h>
 #include <stdio.h>
diff --git a/src/disk/minivhd/minivhd_create.c b/src/disk/minivhd/minivhd_create.c
index 9e34ece9d..c47c7d82d 100644
--- a/src/disk/minivhd/minivhd_create.c
+++ b/src/disk/minivhd/minivhd_create.c
@@ -1,3 +1,6 @@
+#ifndef _FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS 64
+#endif
 #include <assert.h>
 #include <stdlib.h>
 #include <stdio.h>
diff --git a/src/disk/minivhd/minivhd_io.c b/src/disk/minivhd/minivhd_io.c
index 8e9172e63..ddd17177e 100644
--- a/src/disk/minivhd/minivhd_io.c
+++ b/src/disk/minivhd/minivhd_io.c
@@ -3,6 +3,9 @@
  * \brief Sector reading and writing implementations
  */
 
+#ifndef _FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS 64
+#endif
 #include <stdlib.h>
 #include <string.h>
 #include "minivhd_internal.h"
diff --git a/src/disk/minivhd/minivhd_manage.c b/src/disk/minivhd/minivhd_manage.c
index 75e095332..e9473c0e3 100644
--- a/src/disk/minivhd/minivhd_manage.c
+++ b/src/disk/minivhd/minivhd_manage.c
@@ -2,7 +2,9 @@
  * \file
  * \brief VHD management functions (open, close, read write etc)
  */
-
+#ifndef _FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS 64
+#endif
 #include <stdlib.h>
 #include <stdio.h>
 #include <stdint.h>
diff --git a/src/disk/minivhd/minivhd_struct_rw.c b/src/disk/minivhd/minivhd_struct_rw.c
index 66f2289af..c77fa600a 100644
--- a/src/disk/minivhd/minivhd_struct_rw.c
+++ b/src/disk/minivhd/minivhd_struct_rw.c
@@ -2,7 +2,9 @@
  * \file
  * \brief Header and footer serialize/deserialize functions
  */
-
+#ifndef _FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS 64
+#endif
 #include <stdlib.h>
 #include <stdio.h>
 #include <stdint.h>
diff --git a/src/disk/minivhd/minivhd_struct_rw.h b/src/disk/minivhd/minivhd_struct_rw.h
index 0b1e0181f..ee49bb696 100644
--- a/src/disk/minivhd/minivhd_struct_rw.h
+++ b/src/disk/minivhd/minivhd_struct_rw.h
@@ -1,5 +1,5 @@
 #ifndef MINIVHD_STRUCT_RW_H
-#define minivhd_struct_rw
+#define MINIVHD_STRUCT_RW_H
 
 #include "minivhd_internal.h"
 
diff --git a/src/disk/minivhd/minivhd_util.c b/src/disk/minivhd/minivhd_util.c
index d8f44cad0..5bfc59915 100644
--- a/src/disk/minivhd/minivhd_util.c
+++ b/src/disk/minivhd/minivhd_util.c
@@ -2,7 +2,9 @@
  * \file
  * \brief Utility functions
  */
-
+#ifndef _FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS 64
+#endif
 #include <errno.h>
 #include <stdlib.h>
 #include <stdbool.h>
@@ -152,7 +154,7 @@ FILE* mvhd_fopen(const char* path, const char* mode, int* err) {
         }
     }
 #else
-    f = fopen64(path, mode);
+    f = fopen(path, mode);
     if (f == NULL) {
         mvhd_errno = errno;
         *err = MVHD_ERR_FILE;
@@ -253,8 +255,10 @@ int64_t mvhd_ftello64(FILE* stream)
 {
 #ifdef _MSC_VER
     return _ftelli64(stream);
-#else
+#elif defined(__MINGW32__)
     return ftello64(stream);
+#else /* This should work with linux (with _FILE_OFFSET_BITS), and hopefully OS X and BSD */
+    return ftello(stream);
 #endif
 }
 
@@ -262,8 +266,10 @@ int mvhd_fseeko64(FILE* stream, int64_t offset, int origin)
 {
 #ifdef _MSC_VER
     return _fseeki64(stream, offset, origin);
-#else
+#elif defined(__MINGW32__)
     return fseeko64(stream, offset, origin);
+#else /* This should work with linux (with _FILE_OFFSET_BITS), and hopefully OS X and BSD */
+    return fseeko(stream, offset, origin);
 #endif
 }