2 files changed, 3 insertions, 2 deletions
diff --git a/lib/hcl/commands.rb b/lib/hcl/commands.rb
index da3b1f0..a725ad4 100644
--- a/lib/hcl/commands.rb
+++ b/lib/hcl/commands.rb
@@ -88,6 +88,7 @@ module HCl
     end
 
     def log *args
+      fail "There is already a timer running." if DayEntry.with_timer
       start *args
       stop
     end
diff --git a/lib/hcl/utility.rb b/lib/hcl/utility.rb
index 72b4842..fd01901 100644
--- a/lib/hcl/utility.rb
+++ b/lib/hcl/utility.rb
@@ -1,8 +1,8 @@
 module HCl
   class CommandError < StandardError; end
   module Utility
-    def fail message
-      raise CommandError, message
+    def fail *message
+      raise CommandError, message.join(' ')
     end
 
     def get_task_ids ident, args