diff --git a/R710-IPMI-TEMP/fan-speed-control.pl b/R710-IPMI-TEMP/fan-speed-control.pl
index 6df55ca..c27b6d2 100755
--- a/R710-IPMI-TEMP/fan-speed-control.pl
+++ b/R710-IPMI-TEMP/fan-speed-control.pl
@@ -154,7 +154,7 @@ sub set_fans_servo {
   return 1;
 }
 
-my ($tempfh, $tempfilename) = tempfile("fan-speed-control.XXXXX");
+my ($tempfh, $tempfilename) = tempfile("fan-speed-control.XXXXX", TMPDIR => 1);
 
 $SIG{TERM} = $SIG{HUP} = $SIG{INT} = sub { my $signame = shift ; $SIG{$signame} = 'DEFAULT' ; print "Resetting fans back to default\n"; set_fans_default ; kill $signame, $$ };
 END {