diff --git a/Makefile.am b/Makefile.am
index 3d7774b1..07adeab2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -383,6 +383,7 @@ builtin_sources += drivers/atmodem/atutil.h \
 			drivers/ubloxmodem/ubloxmodem.h \
 			drivers/ubloxmodem/ubloxmodem.c \
 			drivers/ubloxmodem/gprs-context.c \
+			drivers/ubloxmodem/netmon.c \
 			drivers/ubloxmodem/lte.c