diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b6e2e5d5e1b..a62934b7a36 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-10-15  Geoffrey Keating  <geoffk@apple.com>
+
+	* doc/invoke.texi (RS/6000 and PowerPC Options): Document
+	-maltivec in same style as other ISA options.
+
 2004-10-15  Jon Grimm <jgrimm2@us.ibm.com>
 
 	* config/host-linux.c (TRY_EMPTY_VM_SPACE): Add __powerpc__
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 3a62a128a31..db8c57f20c5 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -10246,8 +10246,9 @@ scheduling parameters set by @option{-mtune}.
 @itemx -mno-altivec
 @opindex maltivec
 @opindex mno-altivec
-These switches enable or disable the use of built-in functions that
-allow access to the AltiVec instruction set.  You may also need to set
+Generate code that uses (does not use) AltiVec instructions, and also
+enable the use of built-in functions that allow more direct access to
+the AltiVec instruction set.  You may also need to set
 @option{-mabi=altivec} to adjust the current ABI with AltiVec ABI
 enhancements.