diff --git a/lib/std/builtin.zig b/lib/std/builtin.zig
index c5fa77bb7c..53c27f0bf5 100644
--- a/lib/std/builtin.zig
+++ b/lib/std/builtin.zig
@@ -150,7 +150,23 @@ pub const Mode = enum {
 
 /// This data structure is used by the Zig language code generation and
 /// therefore must be kept in sync with the compiler implementation.
-pub const CallingConvention = enum { Unspecified, C, Naked, Async, Inline, Interrupt, Signal, Stdcall, Fastcall, Vectorcall, Thiscall, APCS, AAPCS, AAPCSVFP, SysV };
+pub const CallingConvention = enum {
+    Unspecified,
+    C,
+    Naked,
+    Async,
+    Inline,
+    Interrupt,
+    Signal,
+    Stdcall,
+    Fastcall,
+    Vectorcall,
+    Thiscall,
+    APCS,
+    AAPCS,
+    AAPCSVFP,
+    SysV,
+};
 
 /// This data structure is used by the Zig language code generation and
 /// therefore must be kept in sync with the compiler implementation.