diff --git a/dkbuild b/dkbuild
index f2cf29e..dd09277 100755
--- a/dkbuild
+++ b/dkbuild
@@ -1834,6 +1834,7 @@ function define_functions_cmd() {
             shift
         done
 
+        [ -n "${DEFAULTS[build_build]-1}" ] || return
         [ -n "$output" ] || die "genfile: Vous devez spécifier le fichier en sortie"
         if [ -n "$context" ]; then
             mkdir -p "$context" || die
@@ -1869,6 +1870,7 @@ function define_functions_cmd() {
             shift
         done
 
+        [ -n "${DEFAULTS[build_build]-1}" ] || return
         [ -n "$DOCKERFILE" ] || DOCKERFILE=Dockerfile
         DOCKERCONTEXT=.
         if [ -n "$context" ]; then
@@ -1892,6 +1894,7 @@ function define_functions_cmd() {
     function add2dockerfile() {
         edebug "$(qvals "$@")"
 
+        [ -n "${DEFAULTS[build_build]-1}" ] || return
         [ -n "$DOCKERFILE" ] || return
         echo "$*" >>"$DOCKERFILE"
     }
@@ -2039,6 +2042,7 @@ function define_functions_cmd() {
     function cbuild() {
         edebug "cbuild $(qvals "$@")"
 
+        local build="${DEFAULTS[build_build]-1}"
         local files="${DEFAULTS[cbuild_files]}"
         local project_name="${DEFAULTS[cbuild_project-name]}"
         local no_cache="${DEFAULTS[cbuild_no-cache]}"
@@ -2057,6 +2061,7 @@ function define_functions_cmd() {
             shift
         done
 
+        [ -n "$build" ] || return
         if [ -n "$files" ]; then
             eval "files=($files)"
         else
@@ -2818,12 +2823,16 @@ function build_action() {
         action=update_src
     else
         action=build
-        [ -n "$update_src" ] || update_src=1
-        [ "$update_src" == no ] && update_src=
         if [ -z "$clean_update" -a -z "$sync_src" -a -z "$build" -a -z "$push_image" ]; then
             sync_src=1
             build=1
         fi
+        if [ -n "$build" ]; then
+            [ -n "$update_src" ] || update_src=1
+            [ "$update_src" == no ] && update_src=
+        else
+            update_src=
+        fi
         [ "$sync_src" == no ] && sync_src=
     fi