diff --git a/lam-packaging/debian/postinst b/lam-packaging/debian/postinst
index 9da41018..a80ad3b0 100755
--- a/lam-packaging/debian/postinst
+++ b/lam-packaging/debian/postinst
@@ -98,12 +98,12 @@ if [ "$1" = "configure" ]; then
    if [ "$RET" = "true" ]; then
        for server in $restart; do
            server=${server%,}
-           if [ -x /usr/sbin/invoke-rc.d ]; then
-               /usr/sbin/invoke-rc.d $server reload
-           elif [ -x /usr/sbin/service ]; then
-               /usr/sbin/service $server reload
-           elif [ -x /bin/systemctl ]; then
-               /bin/systemctl reload ${server}.service
+           if [ `which invoke-rc.d` ]; then
+               invoke-rc.d $server reload
+           elif [ `which service` ]; then
+               service $server reload
+           elif [ `which systemctl` ]; then
+               systemctl reload ${server}.service
            fi
        done
    fi
diff --git a/lam-packaging/debian/postrm b/lam-packaging/debian/postrm
index 85965701..cbc1092f 100755
--- a/lam-packaging/debian/postrm
+++ b/lam-packaging/debian/postrm
@@ -37,12 +37,12 @@ if [ -f /usr/share/debconf/confmodule ]; then
 		set -e
 		for server in $restart; do
 				server=${server%,}
-				if [ -x /usr/sbin/invoke-rc.d ]; then
-						/usr/sbin/invoke-rc.d $server reload
-				elif [ -x /usr/sbin/service ]; then
-						/usr/sbin/service $server reload
-				elif [ -x /bin/systemctl ]; then
-						/bin/systemctl reload ${server}.service
+				if [ `which invoke-rc.d` ]; then
+						invoke-rc.d $server reload
+				elif [ `which service` ]; then
+						service $server reload
+				elif [ `which systemctl` ]; then
+						systemctl reload ${server}.service
 				fi
 		done
 	fi