diff --git a/ChangeLog b/ChangeLog
index 7e109e70c0..c78ee79e9c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,9 +1,13 @@
+Tue Dec 13 12:23:47 2005  Tanaka Akira  <akr@m17n.org>
+
+	* re.c (rb_reg_regcomp): fix a GC problem on x86_64 with
+	  gcc 3.3.5 (Debian 1:3.3.5-13).
+
 Tue Dec 13 01:44:16 2005  Tanaka Akira  <akr@m17n.org>
 
 	* array.c (rb_ary_diff): fix a GC problem on IA64 with
 	  gcc 3.3.5 (Debian 1:3.3.5-13).
-	  When rb_ary_push is called, there was no register
-	  which contains
+	  When rb_ary_push is called, there was no register which contains
 	  `hash' but `&RHASH(hash)->tbl' instead.
 
 Tue Dec 13 00:08:09 2005  Tanaka Akira  <akr@m17n.org>
diff --git a/re.c b/re.c
index 18f74fa079..47876d3fcd 100644
--- a/re.c
+++ b/re.c
@@ -1384,6 +1384,7 @@ static VALUE reg_cache;
 VALUE
 rb_reg_regcomp(VALUE str)
 {
+    volatile VALUE save_str = str;
     if (reg_cache && RREGEXP(reg_cache)->len == RSTRING(str)->len
 	&& case_cache == ruby_ignorecase
 	&& kcode_cache == reg_kcode