diff --git a/flake.nix b/flake.nix
index 60e8cad..1d61d3e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -17,7 +17,7 @@
             cargoLock = {
               lockFile = ./Cargo.lock;
             };
-            checkType = "debug";
+            buildType = "debug";
             checkFlags = [
               "--skip=test_extract_strings"
               "--skip=test_init"