diff --git a/nix/packages/uwulib/build.nix b/nix/packages/uwulib/build.nix
index e36b57f0..8bee1995 100644
--- a/nix/packages/uwulib/build.nix
+++ b/nix/packages/uwulib/build.nix
@@ -77,7 +77,12 @@ rec {
     craneLib.buildDepsOnly (
       (commonAttrs commonAttrsArgs)
       // {
-        env = uwuenv.buildDepsOnlyEnv // (makeRocksDBEnv { inherit rocksdb; });
+        env = uwuenv.buildDepsOnlyEnv 
+              // (makeRocksDBEnv { inherit rocksdb; })
+              // {
+                # required since we started using unstable reqwest apparently ... otherwise the all-features build will fail
+                RUSTFLAGS = "--cfg reqwest_unstable";
+              };
         inherit (features) cargoExtraArgs;
       }