diff --git a/libkms/Makefile.am b/libkms/Makefile.am
index dae44e96..21c65aed 100644
--- a/libkms/Makefile.am
+++ b/libkms/Makefile.am
@@ -1,3 +1,5 @@
+include Makefile.sources
+
 AM_CFLAGS = \
 	$(WARN_CFLAGS) \
 	-I$(top_srcdir)/include/drm \
@@ -12,35 +14,31 @@ libkms_la_LIBADD = ../libdrm.la
 #libkms_la_LIBADD += $(LIBUDEV_LIBS)
 #endif
 
-libkms_la_SOURCES = \
-	internal.h \
-	linux.c \
-	dumb.c \
-	api.c
+libkms_la_SOURCES = $(LIBKMS_FILES)
 
 if HAVE_VMWGFX
-libkms_la_SOURCES += vmwgfx.c
+libkms_la_SOURCES += $(LIBKMS_VMWGFX_FILES)
 endif
 
 if HAVE_INTEL
-libkms_la_SOURCES += intel.c
+libkms_la_SOURCES += $(LIBKMS_INTEL_FILES)
 endif
 
 if HAVE_NOUVEAU
-libkms_la_SOURCES += nouveau.c
+libkms_la_SOURCES += $(LIBKMS_NOUVEAU_FILES)
 endif
 
 if HAVE_RADEON
-libkms_la_SOURCES += radeon.c
+libkms_la_SOURCES += $(LIBKMS_RADEON_FILES)
 endif
 
 if HAVE_EXYNOS
-libkms_la_SOURCES += exynos.c
+libkms_la_SOURCES += $(LIBKMS_EXYNOS_FILES)
 AM_CFLAGS += -I$(top_srcdir)/exynos
 endif
 
 libkmsincludedir = ${includedir}/libkms
-libkmsinclude_HEADERS = libkms.h
+libkmsinclude_HEADERS = $(LIBKMS_H_FILES)
 
 pkgconfigdir = @pkgconfigdir@
 pkgconfig_DATA = libkms.pc
diff --git a/libkms/Makefile.sources b/libkms/Makefile.sources
new file mode 100644
index 00000000..3191f516
--- /dev/null
+++ b/libkms/Makefile.sources
@@ -0,0 +1,23 @@
+LIBKMS_FILES := \
+	internal.h \
+	linux.c \
+	dumb.c \
+	api.c
+
+LIBKMS_VMWGFX_FILES := \
+	vmwgfx.c
+
+LIBKMS_INTEL_FILES := \
+	intel.c
+
+LIBKMS_NOUVEAU_FILES := \
+	nouveau.c
+
+LIBKMS_RADEON_FILES := \
+	radeon.c
+
+LIBKMS_EXYNOS_FILES := \
+	exynos.c
+
+LIBKMS_H_FILES := \
+	libkms.h