diff --git a/Makefile b/Makefile
index 010f7f0aa..ad6c39001 100644
--- a/Makefile
+++ b/Makefile
@@ -342,7 +342,7 @@ deb: dist config.sh
 
 .PHONY: deb-apparmor
 deb-apparmor: dist config.sh
-	./mkdeb.sh -apparmor --enable-apparmor
+	env EXTRA_VERSION=-apparmor ./mkdeb.sh --enable-apparmor
 
 .PHONY: test-compile
 test-compile: dist config.mk
diff --git a/mkdeb.sh b/mkdeb.sh
index 5f65e80b2..a0fc01234 100755
--- a/mkdeb.sh
+++ b/mkdeb.sh
@@ -10,10 +10,6 @@ set -e
 
 . "$(dirname "$0")/config.sh"
 
-EXTRA_VERSION=$1
-
-test "$#" -gt 0 && shift
-
 CODE_ARCHIVE="$TARNAME-$VERSION.tar.xz"
 CODE_DIR="$TARNAME-$VERSION"
 INSTALL_DIR="${INSTALL_DIR}${CODE_DIR}/debian"