diff --git a/honoka/plugins/honoka_plugin_def.h b/honoka/plugins/honoka_plugin_def.h
index 34aad95..0511e64 100644
--- a/honoka/plugins/honoka_plugin_def.h
+++ b/honoka/plugins/honoka_plugin_def.h
@@ -59,5 +59,8 @@
 #define HONOKA_CONFIG_CANNA_DICHOMEDIRPATH         "/IMEngine/Honoka/Canna/DicHomeDirPath"
 #define HONOKA_DEFAULT_CANNA_DICHOMEDIRPATH        ""
 
+// SKKDic
+#define HONOKA_CONFIG_SKKDIC_DICFILE    "/IMEngine/Honoka/SKKDic/File"
+#define HONOKA_DEFAULT_SKKDIC_DICFILE    ""
 
 #endif
diff --git a/honoka/plugins/skkdicconversion.cpp b/honoka/plugins/skkdicconversion.cpp
index ebfba63..8568efe 100644
--- a/honoka/plugins/skkdicconversion.cpp
+++ b/honoka/plugins/skkdicconversion.cpp
@@ -43,8 +43,8 @@
 
 SKKDicConversion::SKKDicConversion(ConfigPointer cfg) : Convertor(cfg)
 {
-    String file = cfg->read(String(HONOKA_SKKDIC_CONFIG_DICFILE),
-            String(""));
+    String file = cfg->read(String(HONOKA_CONFIG_SKKDIC_DICFILE),
+            String(HONOKA_DEFAULT_SKKDIC_DICFILE));
     dic = new SKKDic(file);
     pos = 0;
 }
diff --git a/honoka/plugins/skkdicconversion.h b/honoka/plugins/skkdicconversion.h
index 70cd6bf..c45531c 100644
--- a/honoka/plugins/skkdicconversion.h
+++ b/honoka/plugins/skkdicconversion.h
@@ -32,8 +32,6 @@
 #include <convertor.h>
 #include <skkdic.h>
 
-#define HONOKA_SKKDIC_CONFIG_DICFILE    "/IMEngine/Honoka/SKKDic/File"
-
 using namespace std;
 using namespace scim;