diff --git a/examples/pkgcfg.acr b/examples/pkgcfg.acr
index ce7fa02..10da766 100644
--- a/examples/pkgcfg.acr
+++ b/examples/pkgcfg.acr
@@ -1,3 +1,4 @@
+USE_PKGCONFIG
 PKGCFG GTK_FLAGS GTK_LIBS gtk+-2.0
 
 CHKVER libuv 1.0.0
