diff --git a/lib/driver/_cdio_stdio.c b/lib/driver/_cdio_stdio.c
index b0d198b..83850d7 100644
--- a/lib/driver/_cdio_stdio.c
+++ b/lib/driver/_cdio_stdio.c
@@ -50,7 +50,7 @@
 
 /* On 32 bit platforms, fseek can only access streams of 2 GB or less.
    Prefer fseeko/fseeko64, that take a 64 bit offset when LFS is enabled */
-#if defined(HAVE_FSEEKO64) && defined(_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64)
+#if defined(HAVE_FSEEKO64) && defined(_LARGEFILE_SOURCE)
 #define CDIO_FSEEK fseeko64
 #elif defined(HAVE_FSEEKO)
 #define CDIO_FSEEK fseeko
diff --git a/lib/driver/_cdio_generic.c b/lib/driver/_cdio_generic.c
index 4a7fcad..f7fa85c 100644
--- a/lib/driver/_cdio_generic.c
+++ b/lib/driver/_cdio_generic.c
@@ -56,7 +56,7 @@
 #endif
 
 /* If available and LFS is enabled, try to use lseek64 */
-#if defined(HAVE_LSEEK64) && defined(_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64)
+#if defined(HAVE_LSEEK64) && defined(_LARGEFILE_SOURCE)
 #if defined(_MSC_VER)
 #include <io.h>
 #endif