diff --git a/ChangeLog b/ChangeLog
index 013d8937c1..0baee6fe27 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Sep  5 20:35:52 2014  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (has_privilege): Fix a return value.
+
 Fri Sep  5 19:00:40 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
 	* lib/shellwords.rb: proofreading documentation.
diff --git a/process.c b/process.c
index 294f1be186..dcbb71db3e 100644
--- a/process.c
+++ b/process.c
@@ -3367,7 +3367,7 @@ has_privilege(void)
         if (ret == -1)
             rb_sys_fail("getresgid(2)");
         if (egid != sgid)
-            return 0;
+            return 1;
     }
 #else
     {