diff --git a/Makefile.vex.am b/Makefile.vex.am
index 437053e03..f7371df78 100644
--- a/Makefile.vex.am
+++ b/Makefile.vex.am
@@ -203,13 +203,13 @@ LIBVEX_CFLAGS = ${LTO_CFLAGS} \
 
 libvex_@VGCONF_ARCH_PRI@_@VGCONF_OS@_a_SOURCES  = $(LIBVEX_SOURCES_COMMON)
 libvex_@VGCONF_ARCH_PRI@_@VGCONF_OS@_a_CPPFLAGS = \
-        $(AM_CPPFLAGS_@VGCONF_PLATFORM_PRI_CAPS@) -Ipriv
+        $(AM_CPPFLAGS_@VGCONF_PLATFORM_PRI_CAPS@) -I$(srcdir)/priv
 libvex_@VGCONF_ARCH_PRI@_@VGCONF_OS@_a_CFLAGS   = \
         $(AM_CFLAGS_@VGCONF_PLATFORM_PRI_CAPS@) $(LIBVEX_CFLAGS)
 if VGCONF_HAVE_PLATFORM_SEC
 libvex_@VGCONF_ARCH_SEC@_@VGCONF_OS@_a_SOURCES  = $(LIBVEX_SOURCES_COMMON)
 libvex_@VGCONF_ARCH_SEC@_@VGCONF_OS@_a_CPPFLAGS = \
-        $(AM_CPPFLAGS_@VGCONF_PLATFORM_SEC_CAPS@) -Ipriv
+        $(AM_CPPFLAGS_@VGCONF_PLATFORM_SEC_CAPS@) -I$(srcdir)/priv
 libvex_@VGCONF_ARCH_SEC@_@VGCONF_OS@_a_CFLAGS   = \
         $(AM_CFLAGS_@VGCONF_PLATFORM_SEC_CAPS@) $(LIBVEX_CFLAGS)
 endif
@@ -217,14 +217,14 @@ endif
 libvexmultiarch_@VGCONF_ARCH_PRI@_@VGCONF_OS@_a_SOURCES  = \
 	$(LIBVEXMULTIARCH_SOURCES)
 libvexmultiarch_@VGCONF_ARCH_PRI@_@VGCONF_OS@_a_CPPFLAGS = \
-        $(AM_CPPFLAGS_@VGCONF_PLATFORM_PRI_CAPS@) -Ipriv
+        $(AM_CPPFLAGS_@VGCONF_PLATFORM_PRI_CAPS@) -I$(srcdir)/priv
 libvexmultiarch_@VGCONF_ARCH_PRI@_@VGCONF_OS@_a_CFLAGS   = \
         $(AM_CFLAGS_@VGCONF_PLATFORM_PRI_CAPS@) $(LIBVEX_CFLAGS)
 if VGCONF_HAVE_PLATFORM_SEC
 libvexmultiarch_@VGCONF_ARCH_SEC@_@VGCONF_OS@_a_SOURCES  = \
 	$(LIBVEXMULTIARCH_SOURCES)
 libvexmultiarch_@VGCONF_ARCH_SEC@_@VGCONF_OS@_a_CPPFLAGS = \
-        $(AM_CPPFLAGS_@VGCONF_PLATFORM_SEC_CAPS@) -Ipriv
+        $(AM_CPPFLAGS_@VGCONF_PLATFORM_SEC_CAPS@) -I$(srcdir)/priv
 libvexmultiarch_@VGCONF_ARCH_SEC@_@VGCONF_OS@_a_CFLAGS   = \
         $(AM_CFLAGS_@VGCONF_PLATFORM_SEC_CAPS@) $(LIBVEX_CFLAGS)
 endif