diff --git a/dev/flake.nix b/dev/flake.nix
index 22a9c18..33c55ae 100644
--- a/dev/flake.nix
+++ b/dev/flake.nix
@@ -37,7 +37,7 @@
       formatter = eachSystem (pkgs: treefmtEval.${pkgs.system}.config.build.wrapper);
 
       checks = eachSystem (pkgs: {
-        formatting = treefmtEval.${pkgs.system}.config.build.check self;
+        treefmt = treefmtEval.${pkgs.system}.config.build.check self;
       });
     };
 }
diff --git a/doc/flake.nix b/doc/flake.nix
index 0140cb8..c59d861 100644
--- a/doc/flake.nix
+++ b/doc/flake.nix
@@ -35,7 +35,7 @@
       formatter = eachSystem (pkgs: treefmtEval.${pkgs.system}.config.build.wrapper);
 
       checks = eachSystem (pkgs: {
-        formatting = treefmtEval.${pkgs.system}.config.build.check self;
+        treefmt = treefmtEval.${pkgs.system}.config.build.check self;
       });
     };
 }
diff --git a/go/flake.nix b/go/flake.nix
index a3b5b85..47bd0af 100644
--- a/go/flake.nix
+++ b/go/flake.nix
@@ -56,7 +56,7 @@
       formatter = eachSystem (pkgs: treefmtEval.${pkgs.system}.config.build.wrapper);
 
       checks = eachSystem (pkgs: {
-        formatting = treefmtEval.${pkgs.system}.config.build.check self;
+        treefmt = treefmtEval.${pkgs.system}.config.build.check self;
       });
     };
 }
diff --git a/treefmt/flake.nix b/treefmt/flake.nix
index ad5ab8f..0cea4fc 100644
--- a/treefmt/flake.nix
+++ b/treefmt/flake.nix
@@ -43,7 +43,7 @@
       checks = eachSystem (pkgs: {
         # Throws an error if any of the source files are not correctly formatted
         # when you run `nix flake check --print-build-logs`. Useful for CI
-        formatting = treefmtEval.${pkgs.system}.config.build.check self;
+        treefmt = treefmtEval.${pkgs.system}.config.build.check self;
       });
     };
 }
diff --git a/zig/flake.nix b/zig/flake.nix
index 0d216fe..f5b83f6 100644
--- a/zig/flake.nix
+++ b/zig/flake.nix
@@ -46,7 +46,7 @@
       checks = eachSystem (pkgs: {
         # Throws an error if any of the source files are not correctly formatted
         # when you run `nix flake check --print-build-logs`. Useful for CI
-        formatting = treefmtEval.${pkgs.system}.config.build.check self;
+        treefmt = treefmtEval.${pkgs.system}.config.build.check self;
       });
     };
 }