diff --git a/rects/Makefile b/rects/Makefile
index ddb8092..e7e3806 100644
--- a/rects/Makefile
+++ b/rects/Makefile
@@ -31,7 +31,7 @@ else
 	CXXFLAGS += -D NDEBUG -O3
 endif
 
-LDLIBS :=
+LDLIBS := -lcairo
 
 RM := /bin/rm -f
 INSTALL := /usr/bin/install -c