diff --git a/ChangeLog b/ChangeLog
index 956f9a69a5..778773cf42 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Thu Jul  3 01:01:57 2008  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* missing/tgamma.c (tgamma): remove unused variable.
+
 Thu Jul  3 00:18:00 2008  Masaki Suketa  <masaki.suketa@nifty.ne.jp>
 
 	* ext/win32ole/win32ole.c: avoid creating Ruby object during
diff --git a/missing/tgamma.c b/missing/tgamma.c
index 8ed98e9ad8..5e306fbb43 100644
--- a/missing/tgamma.c
+++ b/missing/tgamma.c
@@ -24,7 +24,6 @@ double tgamma(double x)
         return 1/x < 0 ? -HUGE_VAL : HUGE_VAL;
     }
     if (x < 0) {
-        int sign;
         static double zero = 0.0;
         double i, f;
         f = modf(-x, &i);