diff --git a/bin/qemush b/bin/qemush
index 6333929..b716638 100755
--- a/bin/qemush
+++ b/bin/qemush
@@ -90,7 +90,9 @@ public_rm() {
 function="$1"
 shift
 
-if declare -F | cut -d \  -f 3- | grep '^public_' | sed 's/^public_//' | grep -q "^${function}$"; then
+if [ -z "$function" ]; then
+    public_active
+elif declare -F | cut -d \  -f 3- | grep '^public_' | sed 's/^public_//' | grep -q "^${function}$"; then
     "public_${function}" "$@"
 else
     error_usage