diff --git a/src/Makefile b/src/Makefile
index 3abef4e4..295600c4 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -62,7 +62,7 @@ ifeq ($(uname_S),SunOS)
 	# SunOS
 	INSTALL=cp -pf
 	FINAL_CFLAGS+= -D__EXTENSIONS__ -D_XPG6
-	FINAL_LIBS+= -ldl -lnsl -lsocket -lresolv -lpthread
+	FINAL_LIBS+= -ldl -lnsl -lsocket -lresolv -lpthread -lrt
 else
 ifeq ($(uname_S),Darwin)
 	# Darwin (nothing to do)