diff --git a/src/notifications.scm b/src/notifications.scm
index be629ba..f2ca996 100644
--- a/src/notifications.scm
+++ b/src/notifications.scm
@@ -159,7 +159,7 @@
 				    (if (brmember-student? mr)
 					'student
 					'normal)
-				    (format "\t~A" (member-total-balance mr))
+				    (format "\t~A" (+ 0.0 (member-total-balance mr)))
 				    (let* ((payments (brmember-payments mr))
 					   (tr (if (null? payments)
 						   #f