diff --git a/modules/paper-calendar.xml b/modules/paper-calendar.xml
index 6e2d86d..1b81219 100644
--- a/modules/paper-calendar.xml
+++ b/modules/paper-calendar.xml
@@ -16,7 +16,7 @@
 		
 		@number-lectures
 		@number-tutorials
-		@number-laboratories: Whether to generate numbers for lectures, tutorials and labs, respectively. These can be specified globally because you normally want to switch this off for the entire calendar. They're not actually used in this template; rather they're just attached to the root element for ease of reference.
+		@number-laboratories: Whether to generate numbers for lectures, tutorials and labs, respectively. These can only be specified globally because you normally want to switch this off for the entire calendar. They're not actually used in this template; rather they're just attached to the root element for ease of reference.
 		    "yes" [default]
 		    "no"
 	-->