diff --git a/honoka/plugins/asciiinput.cpp b/honoka/plugins/asciiinput.cpp
index 0dfc790..4358fad 100644
--- a/honoka/plugins/asciiinput.cpp
+++ b/honoka/plugins/asciiinput.cpp
@@ -266,7 +266,13 @@
             else setCommitString(text.substr(0,pos));
             reset();
             pos = 0;
-            return true;
+            if (((key.code == SCIM_KEY_Return) ||
+                 (key.code == SCIM_KEY_Linefeed) ||
+                 (key.code == SCIM_KEY_Tab)) && 
+                ((!key.is_alt_down()) &&
+                 (!key.is_control_down()) &&
+                 (!key.is_shift_down()))) return false;
+            else return true;
         }
     }