diff --git a/hw/xquartz/GL/Makefile.am b/hw/xquartz/GL/Makefile.am
index c528d2a78..8f4478fec 100644
--- a/hw/xquartz/GL/Makefile.am
+++ b/hw/xquartz/GL/Makefile.am
@@ -13,3 +13,7 @@ libCGLCore_la_SOURCES = \
 	indirect.c \
 	capabilities.c \
 	visualConfigs.c
+
+EXTRA_DIST = \
+	capabilities.h \
+	visualConfigs.h