diff --git a/lib/Makefile.am b/lib/Makefile.am
index d36d496..c49bd03 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -1,7 +1,7 @@
 # $Id$
 
 EXTRA_DIST = \
-	lib.vcproj
+	lib.vcxproj
 
 liblbfgsincludedir = $(includedir)
 liblbfgsinclude_HEADERS = \
diff --git a/sample/Makefile.am b/sample/Makefile.am
index c50983a..87b698c 100644
--- a/sample/Makefile.am
+++ b/sample/Makefile.am
@@ -2,7 +2,7 @@
 
 EXTRA_DIST = \
 	sample.cpp \
-	sample.vcproj
+	sample.vcxproj
 
 noinst_PROGRAMS = sample