diff --git a/devel/m4/Makefile b/devel/m4/Makefile
index 61be19b1b6..19c8c17e41 100644
--- a/devel/m4/Makefile
+++ b/devel/m4/Makefile
@@ -9,11 +9,11 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=m4
 PKG_VERSION:=1.4.17
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE_URL:=@GNU/m4
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
-PKG_MD5SUM:=a5e9954b1dae036762f7b13673a2cf76
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
+PKG_MD5SUM:=12a3c829301a4fd6586a57d3fcf196dc
 PKG_MAINTAINER:=Heinrich Schuchardt <xypron.glpk@gmx.de>
 PKG_LICENSE:=GPL-3.0+