diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 531181564aa..863339119ac 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,7 @@
+2011-08-11  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* Makefile.in (install-unwind_h): Remove destination file first.
+
 2011-08-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* sync.c: New file.
diff --git a/libgcc/Makefile.in b/libgcc/Makefile.in
index 0d3818eacef..a2cb7c70713 100644
--- a/libgcc/Makefile.in
+++ b/libgcc/Makefile.in
@@ -991,6 +991,7 @@ gcc-extra-parts:
 all: $(extra-parts)
 
 install-unwind_h:
+	rm -f $(gcc_objdir)/include/unwind.h
 	cp unwind.h $(gcc_objdir)/include/unwind.h
 	chmod a+r $(gcc_objdir)/include/unwind.h