diff --git a/build-constraints.yaml b/build-constraints.yaml
index 84bb074e..357d9909 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8,7 +8,7 @@ cabal-format-version: "1.24"
 # Constraints for brand new builds
 packages:
     "Olaf Chitil <oc@kent.ac.uk> @OlafChitil":
-        - fpretty
+        - FPretty
         
     "Maarten Faddegon <stackage@maartenfaddegon.nl> @MaartenFaddegon":
         - libgraph