diff --git a/pkgs/applications/misc/kitty/default.nix b/pkgs/applications/misc/kitty/default.nix
index 0a65f2532d6..6900f305c0f 100644
--- a/pkgs/applications/misc/kitty/default.nix
+++ b/pkgs/applications/misc/kitty/default.nix
@@ -21,14 +21,14 @@
 with python3Packages;
 buildPythonApplication rec {
   pname = "kitty";
-  version = "0.15.0";
+  version = "0.15.1";
   format = "other";
 
   src = fetchFromGitHub {
     owner = "kovidgoyal";
     repo = "kitty";
     rev = "v${version}";
-    sha256 = "1gh8lcyqpkwvmjxwiq5d43sd43bg3c49fyy2x8drqdzj34gc49qg";
+    sha256 = "0y25w8123rjd6f5875mk8yv7mdr75mgswl3sh6zixm7b9r771s9p";
   };
 
   buildInputs = [
diff --git a/pkgs/applications/misc/kitty/no-werror.patch b/pkgs/applications/misc/kitty/no-werror.patch
index 92a65258855..bc1b369d98d 100644
--- a/pkgs/applications/misc/kitty/no-werror.patch
+++ b/pkgs/applications/misc/kitty/no-werror.patch
@@ -3,9 +3,9 @@
 @@ -217,7 +217,7 @@ def init_env(
      cflags = os.environ.get(
          'OVERRIDE_CFLAGS', (
-             '-Wextra {} -Wno-missing-field-initializers -Wall -Wstrict-prototypes -std={}11'
+             '-Wextra {} -Wno-missing-field-initializers -Wall -Wstrict-prototypes -std=c11'
 -            ' -pedantic-errors -Werror {} {} -fwrapv {} {} -pipe {} -fvisibility=hidden'
 +            ' {} {} -fwrapv {} {} -pipe {} -fvisibility=hidden'
          ).format(
-             float_conversion, std,
+             float_conversion,
              optimize,