diff --git a/build-constraints.yaml b/build-constraints.yaml
index f78ae8c2..75dd99c2 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -785,6 +785,7 @@ packages:
     "Leon Mergen leon@solatis.com @solatis":
         - base58string
         # - bitcoin-api GHC 7.10, via wreq
+        # - bitcoin-api-extra GHC 7.10, via wreq
         - bitcoin-block
         - bitcoin-script
         - bitcoin-tx