diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog
index d5018a8a2f8..8d3e5e48466 100644
--- a/libcpp/ChangeLog
+++ b/libcpp/ChangeLog
@@ -1,3 +1,7 @@
+2004-08-25  Paolo Bonzini  <bonzini@gnu.org>
+
+	* Makefile.in: Add back top_builddir.
+
 2004-08-25  Paolo Bonzini  <bonzini@gnu.org>
 
 	* configure.ac: Replace Automake macro invocations
diff --git a/libcpp/Makefile.in b/libcpp/Makefile.in
index d5a1aca4c3a..58904149cf6 100644
--- a/libcpp/Makefile.in
+++ b/libcpp/Makefile.in
@@ -23,6 +23,7 @@
 @SET_MAKE@
 
 srcdir = @srcdir@
+top_builddir = .
 VPATH = @srcdir@
 INSTALL = @INSTALL@
 AR = ar