diff --git a/app/views/play/level/tome/SpellView.coffee b/app/views/play/level/tome/SpellView.coffee
index 8b6bccb98..09ebfbabd 100644
--- a/app/views/play/level/tome/SpellView.coffee
+++ b/app/views/play/level/tome/SpellView.coffee
@@ -476,8 +476,9 @@ module.exports = class SpellView extends CocoView
     currentLine = _.string.rtrim(@aceDoc.$lines[cursorPosition.row].replace(/[ \t]*\/\/[^"']*/g, ''))  # trim // unless inside "
     endOfLine = cursorPosition.column >= currentLine.length  # just typed a semicolon or brace, for example
     beginningOfLine = not currentLine.substr(0, cursorPosition.column).trim().length  # uncommenting code, for example
+    incompleteThis = /^(s|se|sel|self|t|th|thi|this)$/.test currentLine.trim()
     #console.log 'finished?', valid, endOfLine, beginningOfLine, cursorPosition, currentLine.length, aether, new Date() - 0, currentLine
-    if valid and (endOfLine or beginningOfLine)
+    if valid and (endOfLine or beginningOfLine) and not incompleteThis
       if @autocastDelay > 60000
         @preload()
       else