diff --git a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
index ef27f04ae218b..2e135fbe2bd8f 100644
--- a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
+++ b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
@@ -1300,9 +1300,19 @@ extern "C" LLVMTypeKind LLVMRustGetTypeKind(LLVMTypeRef Ty) {
 
 DEFINE_SIMPLE_CONVERSION_FUNCTIONS(SMDiagnostic, LLVMSMDiagnosticRef)
 
+#if LLVM_VERSION_LT(13, 0)
+using LLVMInlineAsmDiagHandlerTy = LLVMContext::InlineAsmDiagHandlerTy;
+#else
+using LLVMInlineAsmDiagHandlerTy = void*;
+#endif
+
 extern "C" void LLVMRustSetInlineAsmDiagnosticHandler(
-    LLVMContextRef C, LLVMContext::InlineAsmDiagHandlerTy H, void *CX) {
+    LLVMContextRef C, LLVMInlineAsmDiagHandlerTy H, void *CX) {
+  // Diagnostic handlers were unified in LLVM change 5de2d189e6ad, so starting
+  // with LLVM 13 this function is gone.
+#if LLVM_VERSION_LT(13, 0)
   unwrap(C)->setInlineAsmDiagnosticHandler(H, CX);
+#endif
 }
 
 extern "C" bool LLVMRustUnpackSMDiagnostic(LLVMSMDiagnosticRef DRef,