diff --git a/start-deployFTBA b/start-deployFTBA
index e96b81dc..e47fd0fc 100644
--- a/start-deployFTBA
+++ b/start-deployFTBA
@@ -1,7 +1,5 @@
 #!/bin/bash
 
-ftbInstallMarker=".ftb-installed"
-
 . ${SCRIPTS:-/}start-utils
 isDebugging && set -x
 set -e
@@ -26,14 +24,26 @@ elif ! [[ ${FTB_MODPACK_VERSION_ID} =~ [0-9]+ ]]; then
   exit 1
 fi
 
-if ! [ -f "${ftbInstallMarker}" ] || [ $(cat "${ftbInstallMarker}") != "${FTB_MODPACK_ID}=${FTB_MODPACK_VERSION_ID}" ]; then
-  ftbInstaller=/data/ftb-installer
-  if ! [[ -f "${ftbInstaller}" ]]; then
-    log "Downloading FTB installer"
-    curl -fsSL https://api.modpacks.ch/public/modpack/1/1/server/linux -o "${ftbInstaller}"
-    chmod +x "${ftbInstaller}"
-  fi
+ftbInstaller=/data/ftb-installer
 
+curlArgs=()
+if [ -f "${ftbInstaller}" ]; then
+  curlArgs+=(-z "${ftbInstaller}")
+fi
+if isDebugging; then
+  curlArgs+=(-v)
+fi
+
+log "Downloading FTB installer"
+curl -fsSL "${curlArgs[@]}" https://api.modpacks.ch/public/modpack/1/1/server/linux -o "${ftbInstaller}"
+if [ $? != 0 ]; then
+  log "ERROR failed to download FTB installer"
+  rm -f "${ftbInstaller}"
+  exit 1
+fi
+chmod +x "${ftbInstaller}"
+
+if ! [ -f "${ftbInstallMarker}" ] || [ $(cat "${ftbInstallMarker}") != "${FTB_MODPACK_ID}=${FTB_MODPACK_VERSION_ID}" ]; then
   rm -rf forge*jar mods config libraries defaultconfigs changelogs
 
   log "Installing modpack ID ${FTB_MODPACK_ID}, version ID ${FTB_MODPACK_VERSION_ID}"