diff --git a/seqs/pyload.sh b/seqs/pyload.sh
index 06c8c7f..bbf4f45 100755
--- a/seqs/pyload.sh
+++ b/seqs/pyload.sh
@@ -61,7 +61,7 @@ step_3_alias() { echo "deps"; }
 step_3() {
   shift
   local lDeps="$toolDeps"
-  case "$1" in 
+  case "${1:-}" in 
     debian)
       lDeps="$toolDepsDebian";;
     raspi);;
@@ -72,7 +72,7 @@ step_3() {
   exe apt-get install ${lDeps} $APTOPT
   saveReturn $?
   endReturn
-  case "$1" in
+  case "${1:-}" in
     raspi)
       exe cd /usr/bin
       exe ln -s js24 js;;