diff --git a/Postal.lua b/Postal.lua
index 58d32dd..46993e0 100644
--- a/Postal.lua
+++ b/Postal.lua
@@ -703,7 +703,7 @@ do
 
 	function self:PreviousMatch()
 		if index then
-			index = abs(min(index - 1, -getn(matches))
+			index = abs(min(index - 1, -getn(matches)))
 			complete()
 		end
 	end