diff --git a/lib/ace/keyboard/textinput.js b/lib/ace/keyboard/textinput.js
index e8f3ed29..0c7514ad 100644
--- a/lib/ace/keyboard/textinput.js
+++ b/lib/ace/keyboard/textinput.js
@@ -210,7 +210,8 @@ var TextInput = function(parentNode, host) {
                 host.onPaste(data);
             pasted = false;
         } else if (data == PLACEHOLDER[0]) {
-            host.execCommand("del", {source: "ace"});
+            if (Date.now() - lastCompositionTime > 100)
+                host.execCommand("del", {source: "ace"});
         } else {
             if (data.substring(0, 2) == PLACEHOLDER)
                 data = data.substr(2);
@@ -355,10 +356,12 @@ var TextInput = function(parentNode, host) {
         if (!inCompostion) return;
         host.onCompositionUpdate(text.value);
     };
-
+    
+    var lastCompositionTime = -1;
     var onCompositionEnd = function(e) {
         inCompostion = false;
         host.onCompositionEnd();
+        lastCompositionTime = Date.now();
     };
 
     var syncComposition = lang.delayedCall(onCompositionUpdate, 50);