diff --git a/bashlib.sh b/bashlib.sh
index b1c2f2e..b21b1e5 100644
--- a/bashlib.sh
+++ b/bashlib.sh
@@ -59,7 +59,7 @@ check_command() {
     local command=$1
 
     if [[ -z $(which ${command}) ]] ; then
-        error "Missing command" ${command}
+        error "Missing command" "${command}"
     fi 
 }