diff --git a/Makefile.config b/Makefile.config
index a3ca3785..0a9b9679 100644
--- a/Makefile.config
+++ b/Makefile.config
@@ -1,11 +1,11 @@
-# context version
+# context version definition
 VERSION ?= 6.6.1
 RELEASE ?= 1
 
 # log
 VERBOSE            ?= 1
 PACKER_LOG         ?= 1
-PACKER_HEADLESS    ?= false
+PACKER_HEADLESS    ?= true
 
 DISTROS := alma8 alma9 \
            alpine316 alpine317 \
diff --git a/context-linux/generate.sh b/context-linux/generate.sh
index d32d8af3..fd22fd82 100755
--- a/context-linux/generate.sh
+++ b/context-linux/generate.sh
@@ -41,7 +41,7 @@ fi
 
 ###
 
-VERSION=${VERSION:-6.6.1}
+VERSION=${VERSION:-6.6.1} # no need to bump, it's exported from the Makefile
 RELEASE=${RELEASE:-1}
 MAINTAINER=${MAINTAINER:-OpenNebula Systems <contact@opennebula.io>}
 LICENSE=${LICENSE:-Apache 2.0}
diff --git a/packer/build.sh b/packer/build.sh
index 77659da3..600b8d26 100755
--- a/packer/build.sh
+++ b/packer/build.sh
@@ -12,6 +12,7 @@ packer build -force \
     -var "version=${DISTRO_VER}" \
     -var "input_dir=${INPUT_DIR}" \
     -var "output_dir=${OUTPUT_DIR}" \
+    -var "headless=${PACKER_HEADLESS}" \
     "$INPUT_DIR"                       # loads all *.pkr.hcl from dir
 
 # delete potential temporary cloud-init files