diff --git a/examples/plugs/runplugs/Makefile b/examples/plugs/runplugs/Makefile
index b95e54d..5ccabfe 100644
--- a/examples/plugs/runplugs/Makefile
+++ b/examples/plugs/runplugs/Makefile
@@ -1,5 +1,5 @@
 GHCFLAGS=   -O $(GHC_EXTRA_OPTS)
-PKGFLAGS=   -package-conf $(TOP)/plugins.conf.inplace
+PKGFLAGS=   -package posix -package-conf $(TOP)/plugins.conf.inplace
 PKGFLAGS+=  -package plugins
 
 all: build