diff --git a/lib/bashrc.d/bash_completion b/lib/bashrc.d/bash_completion
index 534ca89..190e995 100644
--- a/lib/bashrc.d/bash_completion
+++ b/lib/bashrc.d/bash_completion
@@ -2,7 +2,9 @@
 ##@before *
 
 if [ -n "$UTOOLS_BASH_COMPLETION" ]; then
-    if [ -z "$BASH_COMPLETION" -a -f /etc/debian_version ]; then
+    function __bash_completion_enabled() { return 1; }
+    function __bash_completion_module_enabled() { return 1; }
+    if [ -f /etc/debian_version ]; then
         case "$(</etc/debian_version)" in
         6*|squeeze*)
             # le code suivant n'est compatible qu'avec debian squeeze (plus