diff --git a/honoka/src/honoka_imengine.cpp b/honoka/src/honoka_imengine.cpp
index 4a947ee..cab61bf 100644
--- a/honoka/src/honoka_imengine.cpp
+++ b/honoka/src/honoka_imengine.cpp
@@ -544,7 +544,7 @@
     KeyEvent ke = key;
     if (ke.mask & SCIM_KEY_CapsLockMask) ke.mask -= SCIM_KEY_CapsLockMask;
     if (ke.mask & SCIM_KEY_NumLockMask) ke.mask -= SCIM_KEY_NumLockMask;
-    if (ke.mask & SCIM_KEY_ScrollLockMask) ke.mask -= SCIM_KEY_ScrollLockMask;
+    // if (ke.mask & SCIM_KEY_ScrollLockMask) ke.mask -= SCIM_KEY_ScrollLockMask;
     if (m_conversion) return process_conversion_key_event(ke);
     else if (m_yosoku) return process_yosoku_key_event(ke);
     else return process_preedit_key_event(ke) ;
@@ -1100,6 +1100,12 @@
     s = HONOKA_PROP_CONVERTOR;
     if ((property.length() > s.length()) && (property.substr(0,s.length()) == s)) {
         changeConvertor(property.substr(s.length() + 1));
+        if (m_conversion) {
+            if (m_def_convertor != m_convertor) {
+                m_def_convertor->reset();
+                startConversion();
+            }
+        }
         updateProperty();
     }
     s = HONOKA_PROP_CONVERSIONMODE;