diff --git a/impression/kill_cnpkmodule b/impression/kill_cnpkmodule
index 12d27f06..10841abd 100755
--- a/impression/kill_cnpkmodule
+++ b/impression/kill_cnpkmodule
@@ -9,4 +9,4 @@
 # de cnpkmodule avec un time supérieur à 60 minutes
 
 ps ax | grep cnpkmodule | \
-perl -nle '/(\d*)\s+([^\s]*\s*){2}(\d*)/; if ($3 > 60) {kill 9, $1; print "cnpkmodule was killed"}'
+perl -nle '/\s*(\d*)\s+([^\s]*\s*){2}(\d*)/; if ($3 > 60) {kill 9, $1; print "cnpkmodule was killed"}'