Index: lib/tasks/migrate_from_trac.rake
===================================================================
--- lib/tasks/migrate_from_trac.rake	(revision 4425)
+++ lib/tasks/migrate_from_trac.rake	(working copy)
@@ -167,7 +167,7 @@
         has_many :attachments, :class_name => "TracAttachment",
                                :finder_sql => "SELECT DISTINCT attachment.* FROM #{TracMigrate::TracAttachment.table_name}" +
                                               " WHERE #{TracMigrate::TracAttachment.table_name}.type = 'ticket'" +
-                                              ' AND #{TracMigrate::TracAttachment.table_name}.id = \'#{id}\''
+                                              ' AND #{TracMigrate::TracAttachment.table_name}.id = \'#{TracMigrate::TracAttachment.connection.quote_string(id.to_s)}\''
         has_many :customs, :class_name => "TracTicketCustom", :foreign_key => :ticket
 
         def ticket_type
@@ -207,7 +207,7 @@
         has_many :attachments, :class_name => "TracAttachment",
                                :finder_sql => "SELECT DISTINCT attachment.* FROM #{TracMigrate::TracAttachment.table_name}" +
                                       " WHERE #{TracMigrate::TracAttachment.table_name}.type = 'wiki'" +
-                                      ' AND #{TracMigrate::TracAttachment.table_name}.id = \'#{id}\''
+                                      ' AND #{TracMigrate::TracAttachment.table_name}.id = \'#{TracMigrate::TracAttachment.connection.quote_string(id.to_s)}\''
 
         def self.columns
           # Hides readonly Trac field to prevent clash with AR readonly? method (Rails 2.0)