diff --git a/ChangeLog b/ChangeLog
index 601d1ffb32..5674772bee 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Sep 16 21:19:51 2016  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* hash.c (each_pair_i_fast): Fix compile error with old version of
+	  fcc on Solaris 10. [Bug #12768] [ruby-dev:49808]
+
 Fri Sep 16 19:46:05 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* win32/Makefile.sub (config.h): fixed compile error with VC introduced
diff --git a/hash.c b/hash.c
index 401b7e4ab1..1bc93ea92c 100644
--- a/hash.c
+++ b/hash.c
@@ -1750,7 +1750,9 @@ each_pair_i(VALUE key, VALUE value)
 static int
 each_pair_i_fast(VALUE key, VALUE value)
 {
-    VALUE argv[2] = {key, value};
+    VALUE argv[2];
+    argv[0] = key;
+    argv[1] = value;
     rb_yield_values2(2, argv);
     return ST_CONTINUE;
 }