diff --git a/include/share/Makefile.am b/include/share/Makefile.am
index f41439f5..a6a3ca0f 100644
--- a/include/share/Makefile.am
+++ b/include/share/Makefile.am
@@ -13,4 +13,5 @@ EXTRA_DIST = \
 	replaygain_analysis.h \
 	replaygain_synthesis.h \
 	safe_str.h \
-	utf8.h
+	utf8.h \
+	win_utf8_io.h