diff --git a/src/Makefile.am b/src/Makefile.am
index 557c7035de60edd55eef811235ed8f3214cbcc20..ca662c34fadb425d158374b35065f9e5c6fe872c 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1000,23 +1000,6 @@ CPU_SOURCES =							\
 VMX_SOURCES =							\
 		vmx/vmx.c vmx/vmx.h
 
-AM_LFLAGS = -Pxl_disk_ --header-file=../$*.h
-LEX_OUTPUT_ROOT = lex.xl_disk_
-BUILT_SOURCES += xenconfig/xen_xl_disk.c xenconfig/xen_xl_disk.h
-# Generated header file is not implicitly added to dist
-EXTRA_DIST += xenconfig/xen_xl_disk.h
-CLEANFILES += xenconfig/xen_xl_disk.h xenconfig/xen_xl_disk.c
-
-XENXLDISKPARSER_SOURCES = xenconfig/xen_xl_disk.l
-
-XENCONFIG_SOURCES =						\
-		xenconfig/xenxs_private.h			\
-		xenconfig/xen_common.c xenconfig/xen_common.h	\
-		xenconfig/xen_sxpr.c xenconfig/xen_sxpr.h	\
-		xenconfig/xen_xm.c xenconfig/xen_xm.h		\
-		xenconfig/xen_xl.c xenconfig/xen_xl.h		\
-		xenconfig/xen_xl_disk_i.h
-
 pkgdata_DATA =	cpu/cpu_map.xml
 
 EXTRA_DIST +=	$(pkgdata_DATA)
@@ -1070,6 +1053,23 @@ libvirt_vmx_la_SOURCES = $(VMX_SOURCES)
 endif WITH_VMX
 
 if WITH_XENCONFIG
+AM_LFLAGS = -Pxl_disk_ --header-file=../$*.h
+LEX_OUTPUT_ROOT = lex.xl_disk_
+BUILT_SOURCES += xenconfig/xen_xl_disk.c xenconfig/xen_xl_disk.h
+# Generated header file is not implicitly added to dist
+EXTRA_DIST += xenconfig/xen_xl_disk.h
+CLEANFILES += xenconfig/xen_xl_disk.h xenconfig/xen_xl_disk.c
+
+XENXLDISKPARSER_SOURCES = xenconfig/xen_xl_disk.l
+
+XENCONFIG_SOURCES =						\
+		xenconfig/xenxs_private.h			\
+		xenconfig/xen_common.c xenconfig/xen_common.h	\
+		xenconfig/xen_sxpr.c xenconfig/xen_sxpr.h	\
+		xenconfig/xen_xm.c xenconfig/xen_xm.h		\
+		xenconfig/xen_xl.c xenconfig/xen_xl.h		\
+		xenconfig/xen_xl_disk_i.h
+
 # Flex generated XL disk parser needs to be compiled without WARN_FLAGS
 # Add the generated object to its own library to control CFLAGS
 noinst_LTLIBRARIES += libvirt_xenxldiskparser.la