diff --git a/src/modules/ecore_imf/scim/scim_imcontext.cpp b/src/modules/ecore_imf/scim/scim_imcontext.cpp
index 94ee9cf470..3e4b9fc604 100644
--- a/src/modules/ecore_imf/scim/scim_imcontext.cpp
+++ b/src/modules/ecore_imf/scim/scim_imcontext.cpp
@@ -373,7 +373,7 @@ feed_key_event(Evas *evas, const char *str, Eina_Bool fake)
    else
      {
 	if (strlen(str) + 1 > 128) return;
-        strncpy(key_string, str, strlen(str));
+        strncpy(key_string, str, strlen(str) + 1);
         evas_event_feed_key_down(evas, key_string, key_string, NULL, NULL, timestamp, NULL);
         SCIM_DEBUG_FRONTEND(1) << "    evas_event_feed_key_down()...\n";
      }