diff --git a/CHANGES b/CHANGES
index c7fd9af356..62c5f32d3f 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+ 111.   [cleanup]       <isc/rwlock.h> does not need <isc/result.h> or
+                        <isc/mutex.h>.
+
  110.   [cleanup]       <isc/result.h> does not need <isc/boolean.h> or
                         <isc/list.h>.
 
diff --git a/lib/isc/include/isc/rwlock.h b/lib/isc/include/isc/rwlock.h
index 857ca0c990..c98ef09b7e 100644
--- a/lib/isc/include/isc/rwlock.h
+++ b/lib/isc/include/isc/rwlock.h
@@ -20,8 +20,6 @@
 
 #include <isc/lang.h>
 #include <isc/types.h>
-#include <isc/result.h>
-#include <isc/mutex.h>
 #include <isc/condition.h>
 
 ISC_LANG_BEGINDECLS