diff --git a/lib/hardware/coolstream/Makefile.am b/lib/hardware/coolstream/Makefile.am
index d460837c3..b2a96b31e 100644
--- a/lib/hardware/coolstream/Makefile.am
+++ b/lib/hardware/coolstream/Makefile.am
@@ -1,12 +1,9 @@
-noinst_LIBRARIES = libhwcaps.a
-
 AM_CXXFLAGS = -fno-rtti -fno-exceptions -fno-strict-aliasing
 
-if BOXMODEL_CS_HD2
-AM_CPPFLAGS = -I$(top_srcdir)/lib/hardware/coolstream/hd2/libcoolstream
-else
-AM_CPPFLAGS = -I$(top_srcdir)/lib/hardware/coolstream/hd1/libcoolstream
-endif
+AM_CPPFLAGS = \
+	@HWLIB_CFLAGS@
+
+noinst_LIBRARIES = libhwcaps.a
 
 libhwcaps_a_SOURCES = \
 	hardware_caps.cpp