--- File-Pid-1.01/lib/File/Pid.pm.orig 2005-01-11 14:09:54.000000000 +0100
+++ File-Pid-1.01/lib/File/Pid.pm      2011-02-04 18:28:50.000000000 +0100
@@ -119,7 +119,7 @@
 
 sub running {
     my $self = shift;
-    my $pid  = $self->_get_pid_from_file;
+    my $pid  = $self->_get_pid_from_file or return undef;
 
     return   kill(0, $pid)
            ? $pid