diff --git a/compiler/rustc_target/src/callconv/mod.rs b/compiler/rustc_target/src/callconv/mod.rs
index 8d8270cd8cd9..e019dc55950e 100644
--- a/compiler/rustc_target/src/callconv/mod.rs
+++ b/compiler/rustc_target/src/callconv/mod.rs
@@ -902,14 +902,14 @@ fn conv_to_externabi(conv: &Conv) -> ExternAbi {
     match conv {
         Conv::Rust => ExternAbi::Rust,
         Conv::PreserveMost => ExternAbi::RustCold,
-        Conv::X86Stdcall => ExternAbi::Stdcall{unwind: false},
-        Conv::X86Fastcall => ExternAbi::Fastcall{unwind: false},
-        Conv::X86VectorCall => ExternAbi::Vectorcall{unwind: false},
-        Conv::X86ThisCall => ExternAbi::Thiscall{unwind: false},
-        Conv::C => ExternAbi::C{unwind: false},
-        Conv::X86_64Win64 => ExternAbi::Win64{unwind: false},
-        Conv::X86_64SysV => ExternAbi::SysV64{unwind: false},
-        Conv::ArmAapcs => ExternAbi::Aapcs{unwind: false},
+        Conv::X86Stdcall => ExternAbi::Stdcall { unwind: false },
+        Conv::X86Fastcall => ExternAbi::Fastcall { unwind: false },
+        Conv::X86VectorCall => ExternAbi::Vectorcall { unwind: false },
+        Conv::X86ThisCall => ExternAbi::Thiscall { unwind: false },
+        Conv::C => ExternAbi::C { unwind: false },
+        Conv::X86_64Win64 => ExternAbi::Win64 { unwind: false },
+        Conv::X86_64SysV => ExternAbi::SysV64 { unwind: false },
+        Conv::ArmAapcs => ExternAbi::Aapcs { unwind: false },
         Conv::CCmseNonSecureCall => ExternAbi::CCmseNonSecureCall,
         Conv::CCmseNonSecureEntry => ExternAbi::CCmseNonSecureEntry,
         Conv::PtxKernel => ExternAbi::PtxKernel,