diff --git a/configure.ac b/configure.ac
index 8b7fe6969..2dc77868d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -239,7 +239,7 @@ if test "$BOXTYPE" = "coolstream"; then
 if test -e ${srcdir}/lib/hardware/coolstream/hd1/libcoolstream/nevis_ir.h; then
 	AC_DEFINE(HAVE_COOLSTREAM_NEVIS_IR_H,1,[Define to 1 if you have the <nevis_ir.h> header file.])
 fi
-HWLIB_CFLAGS='-I$(top_srcdir)/lib/hardware/coolstream/hd1/libcoolstream -I$(top_srcdir)/src/zapit/include/private'
+HWLIB_CFLAGS='-I$(top_srcdir)/lib/hardware/coolstream/hd1/libcoolstream'
 
 if test "$BOXMODEL" = "hd2"; then
 if test -e ${srcdir}/lib/hardware/coolstream/hd2/libcoolstream/cs_ir_generic.h; then
@@ -248,8 +248,9 @@ fi
 if test -e ${srcdir}/lib/hardware/coolstream/hd2/libcoolstream/cs_frontpanel.h; then
 	AC_DEFINE(HAVE_COOLSTREAM_CS_FRONTPANEL_H,1,[Define to 1 if you have the <cs_frontpanel.h> header file.])
 fi
-HWLIB_CFLAGS='-I$(top_srcdir)/lib/hardware/coolstream/hd2/libcoolstream -I$(top_srcdir)/src/zapit/include/private'
+HWLIB_CFLAGS='-I$(top_srcdir)/lib/hardware/coolstream/hd2/libcoolstream'
 fi
+HWLIB_CFLAGS="$HWLIB_CFLAGS "'-I$(top_srcdir)/src/zapit/include/private'
 HWLIB_CFLAGS="$HWLIB_CFLAGS "'-I$(top_srcdir)/lib/hardware/coolstream'
 fi