diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1a400886d3b5..a4c6e9e1400e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2012-10-21  Joern Rennecke  <joern.rennecke@embecosm.com>
+
+	* rtl.def (ADDR_DIFF_VEC): Fix comment typo.
+
 2012-10-21  Eric Botcazou  <ebotcazou@adacore.com>
 
 	PR rtl-optimization/44194
diff --git a/gcc/rtl.def b/gcc/rtl.def
index e8a6adfd0990..32098af7dbe9 100644
--- a/gcc/rtl.def
+++ b/gcc/rtl.def
@@ -241,7 +241,7 @@ DEF_RTL_EXPR(ADDR_VEC, "addr_vec", "E", RTX_EXTRA)
 
    The third, fourth and fifth operands are only valid when
    CASE_VECTOR_SHORTEN_MODE is defined, and only in an optimizing
-   compilations.  */
+   compilation.  */
 
 DEF_RTL_EXPR(ADDR_DIFF_VEC, "addr_diff_vec", "eEee0", RTX_EXTRA)