diff --git a/ChangeLog b/ChangeLog
index b3682561ee..39a5ec72e5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Sun Sep 21 18:14:03 2014  Narihiro Nakamura <authornari@gmail.com>
+
+	* st.c (numberof): unused. internal.h has same macro.
+
+	* node.c (F_CUSTOM2): unused.
+
 Sun Sep 21 14:11:23 2014  Tanaka Akira  <akr@fsij.org>
 
 	* thread_pthread.c (native_set_thread_name): New function to
diff --git a/node.c b/node.c
index cf334e3db4..32518d3154 100644
--- a/node.c
+++ b/node.c
@@ -49,9 +49,6 @@
 #define F_LIT(name, ann)	    SIMPLE_FIELD(#name, #name " (" ann ")", A_LIT(node->name))
 #define F_MSG(name, ann, desc)	    SIMPLE_FIELD(#name, #name " (" ann ")", A(desc))
 
-#define F_CUSTOM2(name, ann, block) \
-    COMPOUND_FIELD(#name, #name " (" ann ")", block)
-
 #define F_NODE(name, ann) \
     COMPOUND_FIELD(#name, #name " (" ann ")", dump_node(buf, indent, comment, node->name))
 
diff --git a/st.c b/st.c
index 9f21a96196..15ae6949eb 100644
--- a/st.c
+++ b/st.c
@@ -83,8 +83,6 @@ static void rehash(st_table *);
 #define free(x) xfree(x)
 #endif
 
-#define numberof(array) (int)(sizeof(array) / sizeof((array)[0]))
-
 #define EQUAL(table,x,y) ((x)==(y) || (*(table)->type->compare)((x),(y)) == 0)
 
 #define do_hash(key,table) (st_index_t)(*(table)->type->hash)((key))