diff --git a/ChangeLog b/ChangeLog
index 8c1ececa1..e87f0a7a4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2014-01-07  Andrey Borzenkov <arvidjaar@gmail.com>
+
+	* include/grub/osdep/hostfile_windows.h: Do not redefine fseeko/ftello
+	on MinGW-64 when compiling for 32 bits.
+
 2013-12-30  Andrey Borzenkov <arvidjaar@gmail.com>
 
 	* grub-core/Makefile.core.def: strip .eh_frame section for arm64-efi.
diff --git a/include/grub/osdep/hostfile_windows.h b/include/grub/osdep/hostfile_windows.h
index 36615b2c4..79efcfa50 100644
--- a/include/grub/osdep/hostfile_windows.h
+++ b/include/grub/osdep/hostfile_windows.h
@@ -69,8 +69,11 @@ enum grub_util_fd_open_flags_t
 
 #if defined (__MINGW32__) && !defined (__MINGW64__)
 
+/* 32 bit on MinGW-64 already redefines them if _FILE_OFFSET_BITS=64 */
+#if !defined(_FILE_OFFSET_BITS)
 #define fseeko fseeko64
 #define ftello ftello64
+#endif
 
 #endif