1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index c8d25f2..bf57a13 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@
 
 VERSION = 1.5.0
 
-CPPFLAGS += -I./include -I$(BUILDDIR)/include -I./ubi-utils/include $(ZLIBCPPFLAGS) $(LZOCPPFLAGS)
+CPPFLAGS += -D_GNU_SOURCE -I./include -I$(BUILDDIR)/include -I./ubi-utils/include $(ZLIBCPPFLAGS) $(LZOCPPFLAGS)
 
 ifeq ($(WITHOUT_XATTR), 1)
   CPPFLAGS += -DWITHOUT_XATTR