diff --git a/libarmbox/Makefile.am b/libarmbox/Makefile.am
index 0bc7ec6..6e2e341 100644
--- a/libarmbox/Makefile.am
+++ b/libarmbox/Makefile.am
@@ -1,6 +1,6 @@
 noinst_LTLIBRARIES = libarmbox.la
 
-AM_CPPFLAGS = -D__STDC_FORMAT_MACROS -D__STDC_CONSTANT_MACROS
+AM_CPPFLAGS = -D__STDC_FORMAT_MACROS -D__STDC_CONSTANT_MACROS -D_FILE_OFFSET_BITS=64
 AM_CPPFLAGS += \
 	-I$(top_srcdir)/common \
 	-I$(top_srcdir)/include \