diff --git a/debian/changelog b/debian/changelog
index 255285d..3dc9316 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+odroid-wiringpi (3.13.6) stable; urgency=medium
+
+  * ODROID-M1: define "DEVMEM" in m1 header. for solving gpiod error on pip package.
+
+ -- steve <jkhpro1003@gmail.com>  Fri, 16 Sep 2022 12:29:00 +0900
+
 odroid-wiringpi (3.13.5) stable; urgency=medium
 
   * libwiringpi2: update Depends
diff --git a/wiringPi/Makefile.am b/wiringPi/Makefile.am
index 0cf32ab..aa0df83 100644
--- a/wiringPi/Makefile.am
+++ b/wiringPi/Makefile.am
@@ -46,8 +46,7 @@ libwiringPi_la_SOURCES = \
 
 libwiringPi_la_CFLAGS = \
 	@EXTRA_CFLAGS@ \
-	$(LIBCRYPT_CFLAGS) \
-	-DDEVMEM
+	$(LIBCRYPT_CFLAGS)
 
 libwiringPi_la_LDFLAGS = \
 	-version-info @LIBWIRINGPI_VERSION@ \
diff --git a/wiringPi/odroidm1.h b/wiringPi/odroidm1.h
index a7b9a4b..7b738e7 100644
--- a/wiringPi/odroidm1.h
+++ b/wiringPi/odroidm1.h
@@ -24,6 +24,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #ifndef	__ODROID_M1_H__
 #define	__ODROID_M1_H__
+// flag of Using "/dev/gpiomem" or "libgpiod"
+#define DEVMEM
 
 /*----------------------------------------------------------------------------*/
 // Common mmap block size for ODROID-M1 GRF register