diff --git a/src/capwap/Makefile b/src/capwap/Makefile
index 11b03faf..9250cb14 100644
--- a/src/capwap/Makefile
+++ b/src/capwap/Makefile
@@ -93,7 +93,8 @@ CAPWAPOBJS= \
 	   wtpinfo_lwreadelem_wtp_descriptor.o \
 	   cw_msgelemtostr.o \
 	   hdr_print.o \
-	   cw_ianavendoridtostr.o
+	   cw_ianavendoridtostr.o \
+	   cw_readelem_ecn_support.o