diff --git a/tailscale/download.py b/tailscale/download.py
index 4eaa96d..f7242eb 100755
--- a/tailscale/download.py
+++ b/tailscale/download.py
@@ -3,7 +3,7 @@
 import os
 import shutil
 
-TSVERSION = "1.60.1"
+TSVERSION = "1.74.1"
 
 def download(url, target_folder):
     try:
diff --git a/tailscale/start.sh b/tailscale/start.sh
index 72ef05c..4ef3361 100755
--- a/tailscale/start.sh
+++ b/tailscale/start.sh
@@ -36,7 +36,7 @@ download() {
     cmd="cppython ./download.py $tsarch"
     tsversion="$(cppython ./get_tskey.py tsversion)"
     if [ -n "$tsversion" ]; then
-        cmd+=" -v $tsversion"
+        cmd="$cmd -v $tsversion"
     fi
     eval $cmd | logerr
     if [ $? -ne 0 ]; then