diff --git a/src/dodb/exceptions.cr b/src/dodb/exceptions.cr
index 0b8ce63..d41bb9f 100644
--- a/src/dodb/exceptions.cr
+++ b/src/dodb/exceptions.cr
@@ -4,7 +4,7 @@ class DODB::MissingEntry < Exception
 	getter key   : String | Int32
 
 	def initialize(@index, @key)
-		super "no entry in index '#{@index}' for key '#{@key}''"
+		super "no entry in index '#{@index}' for key '#{@key}'"
 	end
 
 	def initialize(@key)