diff --git a/Makefile b/Makefile
index 976d2b3f99de6c88585aeaa836d046c9e6c21acf..1f279089400d59b9fdf195cd95a28abcce2cb32b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 ##
 ## Makefile for Miosix embedded OS
 ##
-MAKEFILE_VERSION := 1.08
+MAKEFILE_VERSION := 1.09
 GCCMAJOR := $(shell arm-miosix-eabi-gcc --version | \
                     perl -e '$$_=<>;/\(GCC\) (\d+)/;print "$$1"')
 ## Path to kernel directory (edited by init_project_out_of_git_repo.pl)
diff --git a/miosix/Makefile b/miosix/Makefile
index b596e21d3be95ade0a702a6236036727ad7fbbed..95d8c7986f1f49f69d72927f8b0bf62830daff44 100644
--- a/miosix/Makefile
+++ b/miosix/Makefile
@@ -2,7 +2,7 @@
 ## Makefile for Miosix embedded OS
 ## This makefile builds the whole kernel
 ##
-MAKEFILE_VERSION := 1.08
+MAKEFILE_VERSION := 1.09
 GCCMAJOR := $(shell arm-miosix-eabi-gcc --version | \
                     perl -e '$$_=<>;/\(GCC\) (\d+)/;print "$$1"')
 ## KPATH and CONFPATH are forwarded by the parent Makefile
diff --git a/miosix/config/Makefile.inc b/miosix/config/Makefile.inc
index cb8c32d03fe2d832d6e3d1cea6911e75a92780ec..0bceac2947f54fade31ad6b8ae807c13c132b764 100644
--- a/miosix/config/Makefile.inc
+++ b/miosix/config/Makefile.inc
@@ -587,7 +587,7 @@ endif
 ## a new board or porting Miosix to a new architecture                    ##
 ############################################################################
 
-ifneq ($(MAKEFILE_VERSION),1.08)
+ifneq ($(MAKEFILE_VERSION),1.09)
     $(info You are using an incompatible makefile. Make sure it matches \
       the one distributed with the current version of the kernel)
     $(error Error)