diff --git a/hw/kdrive/ephyr/Makefile.am b/hw/kdrive/ephyr/Makefile.am
index d025c201c..81d3d69ea 100644
--- a/hw/kdrive/ephyr/Makefile.am
+++ b/hw/kdrive/ephyr/Makefile.am
@@ -35,6 +35,7 @@ if XEPHYR_HAS_DRI
 
 libxephyr_hostdri_a_SOURCES= \
 ephyrdriext.c	\
+ephyrdriext.h	\
 ephyrdri.c	\
 ephyrdri.h	\
 XF86dri.c	\