diff --git a/root/etc/s6-overlay/s6-rc.d/init-mod-code-server-extension-arguments/run b/root/etc/s6-overlay/s6-rc.d/init-mod-code-server-extension-arguments/run
index 3bfecc6a..ad3d8eb8 100755
--- a/root/etc/s6-overlay/s6-rc.d/init-mod-code-server-extension-arguments/run
+++ b/root/etc/s6-overlay/s6-rc.d/init-mod-code-server-extension-arguments/run
@@ -7,7 +7,10 @@ if [ -z ${VSCODE_EXTENSION_IDS+x} ]; then
 fi
 
 IFS='|'
+VSCODE_EXTENSION_IDS=$(tr -d "[:space:]" <<< ${VSCODE_EXTENSION_IDS})
 VSCODE_EXTENSION_IDS=(${VSCODE_EXTENSION_IDS})
 for ID in "${VSCODE_EXTENSION_IDS[@]}"; do
-  install-extension ${ID}
+  if [ -n ${ID} ]; then
+    install-extension ${ID}
+  fi
 done