diff --git a/stack.yaml b/stack.yaml
index 1e8c689c..9e32d992 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -12,6 +12,7 @@ packages:
     - ./ihaskell-display/ihaskell-charts
     - ./ihaskell-display/ihaskell-diagrams
     - ./ihaskell-display/ihaskell-gnuplot
+    - ./ihaskell-display/ihaskell-graphviz
     - ./ihaskell-display/ihaskell-hatex
     - ./ihaskell-display/ihaskell-juicypixels
     - ./ihaskell-display/ihaskell-magic