diff --git a/debian/lenny/tdebase/debian/tdm-trinity.postinst b/debian/lenny/tdebase/debian/tdm-trinity.postinst
index 24fc19bb4..282662484 100644
--- a/debian/lenny/tdebase/debian/tdm-trinity.postinst
+++ b/debian/lenny/tdebase/debian/tdm-trinity.postinst
@@ -63,7 +63,7 @@ for HOST in "" \
   fi
 done
 # or if it's already running
-if start-stop-daemon --stop --quiet --signal 0 --pid /var/run/tdm.pid --exec /opt/trinity/bin/tdm; then
+if start-stop-daemon --stop --quiet --signal 0 --pidfile /var/run/tdm.pid --exec /opt/trinity/bin/tdm; then
   NOSTART=yes
 fi
 # or if the options file says not to
diff --git a/debian/squeeze/tdebase/debian/tdm-trinity.postinst b/debian/squeeze/tdebase/debian/tdm-trinity.postinst
index 24fc19bb4..282662484 100644
--- a/debian/squeeze/tdebase/debian/tdm-trinity.postinst
+++ b/debian/squeeze/tdebase/debian/tdm-trinity.postinst
@@ -63,7 +63,7 @@ for HOST in "" \
   fi
 done
 # or if it's already running
-if start-stop-daemon --stop --quiet --signal 0 --pid /var/run/tdm.pid --exec /opt/trinity/bin/tdm; then
+if start-stop-daemon --stop --quiet --signal 0 --pidfile /var/run/tdm.pid --exec /opt/trinity/bin/tdm; then
   NOSTART=yes
 fi
 # or if the options file says not to
diff --git a/ubuntu/maverick/tdebase/debian/tdm-trinity.postinst b/ubuntu/maverick/tdebase/debian/tdm-trinity.postinst
index ec394f9cf..5686056a7 100644
--- a/ubuntu/maverick/tdebase/debian/tdm-trinity.postinst
+++ b/ubuntu/maverick/tdebase/debian/tdm-trinity.postinst
@@ -81,7 +81,7 @@ for HOST in "" \
   fi
 done
 # or if it's already running
-if start-stop-daemon --stop --quiet --signal 0 --pid /var/run/tdm.pid --exec /opt/trinity/bin/tdm; then
+if start-stop-daemon --stop --quiet --signal 0 --pidfile /var/run/tdm.pid --exec /opt/trinity/bin/tdm; then
   NOSTART=yes
 fi
 # or if the options file says not to