diff --git a/src/Makefile b/src/Makefile
index a68caeb..2b89ead 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -15,6 +15,8 @@ OBJS		= buffer.o kiss.o ax25.o if.o address.o frame.o \
 
 EXAMPLES	= iflist decode ptmx
 
+HEADERS_BUILD	= $(addprefix $(INCLUDE_PATH)/$(HEADER_SUBDIR)/, $(HEADERS))
+
 AR		= $(CROSS)ar
 RANLIB		= $(CROSS)ranlib