diff --git a/Makefile.am b/Makefile.am
index 7a3e66a..b5d488f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -19,8 +19,8 @@
 setsensor_CXXFLAGS = $(SDBUSPLUS_CFLAGS) $(PHOSPHOR_DBUS_INTERFACES_CFLAGS) $(PHOSPHOR_LOGGING_CFLAGS)
 
 swampd_SOURCES = main.cpp util.cpp
-swampd_LDADD = $(SDBUSPLUS_LIBS) libswampd.la
-swampd_CXXFLAGS = $(SDBUSPLUS_CFLAGS)
+swampd_LDADD = $(SDBUSPLUS_LIBS) $(PTHREAD_LIBS) libswampd.la
+swampd_CXXFLAGS = $(SDBUSPLUS_CFLAGS) $(PTHREAD_CFLAGS)
 
 noinst_LTLIBRARIES = libswampd.la
 libswampd_la_LDFLAGS = -static