diff --git a/start-testsuite.sh b/start-testsuite.sh
index 54332bb49..e5bc75636 100755
--- a/start-testsuite.sh
+++ b/start-testsuite.sh
@@ -36,8 +36,16 @@ if [ $# -gt 2 ]; then
 	TEST=$3
 fi
 
+# this is an example for using a non-installed custom (e.g. git master) TITAN
+#TTCN3_DIR="/home/laforge/projects/git/titan/titan.core/Install"
+#export TTCN3_DIR
+#TITAN_LIBRARY_PATH="$TTCN3_DIR/lib"
+#TTCN3_BIN_DIR="$TTCN3_DIR/bin"
+
+# below is for the debian packages
+TTCN3_BIN_DIR="/usr/bin"
 TITAN_LIBRARY_PATH="/usr/lib/titan:/usr/ttcn3/lib"
-LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$SUITE_DIR:$TITAN_LIBRARY_PATH" ttcn3_start $SUITE $CFG $TEST
+LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$SUITE_DIR:$TITAN_LIBRARY_PATH" "$TTCN3_BIN_DIR/ttcn3_start" $SUITE $CFG $TEST
 
 expected="$SUITE_DIR/expected-results.xml"
 if [ ! -f "$expected" ]; then