diff --git a/bin/miaou-bash b/bin/miaou-bash
index 56b2e5a..a7eae70 100755
--- a/bin/miaou-bash
+++ b/bin/miaou-bash
@@ -20,10 +20,8 @@ function is_true {
 function miaou_debug {
   if is_true "${MIAOU_DEBUG}"; then
     local saved_bash_rematch=("${BASH_REMATCH[@]}") # important when regex are used before calling miaou_debug
-    local i message="$*" padding=''
-    local compute_hierarchy=true
+    local regex i message="$*" padding='' compute_hierarchy=true
     [[ ! -v miaou_debug_hierarchy ]] && miaou_debug_hierarchy=0
-
     regex='^</' # starts with </
     [[ $miaou_debug_hierarchy -gt 0 ]] &&
       [[ "${message}" =~ $regex ]] &&
@@ -133,16 +131,16 @@ function on_error {
           if [[ "$MIAOU_LOCALE" == 'fr' ]]; then
             NBSP=$'\xc2\xa0'
             last_error="${last_error//$NBSP/ }"
-            miaou_debug "<strip_nbsp locale=$MIAOU_LOCALE/>" # FIXME: raise issue 'commande introuvable NBSP' within fr.po!
+            miaou_debug "<strip_nbsp locale=$MIAOU_LOCALE/>"
           fi
 
-          regex="$MSG_COMMAND_NOT_FOUND_REGEX"
+          regex=$MSG_COMMAND_NOT_FOUND_REGEX
           if [[ $failure_code == 127 && "$last_error" =~ $regex ]]; then
             failure_type='COMMAND_NOT_FOUND'
             failure_payload="${BASH_REMATCH[3]}"
             miaou_debug "<command_not_found payload=${failure_payload}/>"
           else
-            regex="$MSG_FILE_NOT_FOUND_REGEX"
+            regex=$MSG_FILE_NOT_FOUND_REGEX
             if [[ $failure_code == 127 && "$last_error" =~ $regex ]]; then
               failure_type='FILE_NOT_FOUND'
               failure_payload="${BASH_REMATCH[3]}"
@@ -495,9 +493,10 @@ function on_exit {
     elif [[ ! -v failure_type ]]; then
       if [[ ${#tmp_error[@]} -gt 0 ]]; then
         last_error="${tmp_error[-1]}"
+
         miaou_debug "<investigate_tmp_error_pass2 last={$last_error}>"
-        regex="$MSG_UNBOUND_VARIABLE_REGEX"
-        if [[ $failure_code -eq 1 ]] && [[ "$last_error" =~ $regex ]]; then
+        regex=$MSG_UNBOUND_VARIABLE_REGEX
+        if [[ $failure_code == 1 ]] && [[ "$last_error" =~ $regex ]]; then
           failure_type='UNBOUND_VARIABLE'
           failure_payload="${BASH_REMATCH[3]}"
           failure_code=2
@@ -512,8 +511,9 @@ function on_exit {
           add_miaou_error "$source" "$line" "${failure_code}" "${failure_type}" "${failure_payload}"
           miaou_debug "<unbound_variable source=${source} line=${line} payload=${failure_payload}/>"
         else
-          regex="$MSG_SOURCE_NOT_FOUND_REGEX"
-          if [[ $failure_code -eq 1 ]] && [[ "$last_error" =~ $regex ]]; then
+          regex=$MSG_SOURCE_NOT_FOUND_REGEX
+          miaou_debug "<try failure_code=$failure_code source_not_found=$regex/>"
+          if [[ $failure_code == 1 ]] && [[ "$last_error" =~ $regex ]]; then
             failure_type='SOURCE_NOT_FOUND'
             failure_payload="${BASH_REMATCH[3]}"
             failure_code=3
diff --git a/locales/fr.sh b/locales/fr.sh
index 70199b7..4999f2b 100644
--- a/locales/fr.sh
+++ b/locales/fr.sh
@@ -6,5 +6,5 @@ MSG_UNBOUND_VARIABLE_REGEX='^(.*): ligne ([0-9]+): (.*) : variable sans liaison$
 # extra ' ' + weird NBSP (removed programmatically) => raise issue fr.po too
 MSG_COMMAND_NOT_FOUND_REGEX='^(.*): ligne ([0-9]+): (.*) : commande introuvable$'
 
-MSG_FILE_NOT_FOUND_REGEX='^(.*): ligne ([0-9]+): (.*): Aucun fichier ou dossier de ce nom$'
-MSG_SOURCE_NOT_FOUND_REGEX='^(.*): ligne ([0-9]+): (.*): Aucun fichier ou dossier de ce nom$'
+MSG_FILE_NOT_FOUND_REGEX='^(.*): ligne ([0-9]+): (.*): Aucun fichier ou dossier de ce (nom|type)$'
+MSG_SOURCE_NOT_FOUND_REGEX='^(.*): ligne ([0-9]+): (.*): Aucun fichier ou dossier de ce (nom|type)$'
diff --git a/test/miaou-bash.test.bash b/test/miaou-bash.test.bash
index a1b524b..31136f4 100755
--- a/test/miaou-bash.test.bash
+++ b/test/miaou-bash.test.bash
@@ -104,6 +104,7 @@ function fail_type {
     for gen_locale in "${GEN_LOCALES[@]}"; do
       if [[ "$gen_locale" == "$TEST_LANG" ]]; then
         locale_found=true
+        lang_options+=("LANG=$TEST_LANG")
         break
       fi
     done
@@ -136,18 +137,25 @@ function fail_type {
 }
 
 function fail_stderr_grep {
+  declare -a lang_options=()
+  if [[ -v TEST_LANG ]]; then
+    lang_options+=("LANG=$TEST_LANG")
+  fi
+
   ((test_count++))
   cmd="$MIAOU_BASH_DIR/test/stub/scenario.bash $1"
   stderr_line="$2"
 
-  if ! $cmd 2>"$TMP_ERR" && grep -q "$stderr_line" "$TMP_ERR"; then
+  if ! eval "${lang_options[*]} $cmd" 2>"$TMP_ERR" 3>/dev/null && grep -q "$stderr_line" "$TMP_ERR"; then
     print_passed
     return
   fi
 
   print_failed
-  failures+=("$cmd 2>&1 | grep -q \"$stderr_line\"")
+  # failures+=("$cmd 2>&1 | grep -q \"$stderr_line\"")
+  failures+=("${lang_options[*]} $cmd 2>&1 3>/dev/null | grep -q \"$stderr_line\"")
   return 1
+
 }
 
 function fail_stderr_count {
@@ -289,6 +297,7 @@ time {
   fail_stderr_grep two_options 'ERROR: too many args 2, either single option or SCRIPT + args accepted!'
   fail_stderr_grep script_not_found "ERROR: script 'doesnt_exist' not found!"
   fail_stderr_grep no_script 'ERROR: script expected!'
+  TEST_LANG=zh_CN.UTF-8 fail_stderr_grep file_not_found FILE_NOT_FOUND
 
   assert_locales_equally_populated en es fr
 }