diff --git a/src/rustllvm/RustWrapper.cpp b/src/rustllvm/RustWrapper.cpp
index a5644d6f9e2..e815d151aeb 100644
--- a/src/rustllvm/RustWrapper.cpp
+++ b/src/rustllvm/RustWrapper.cpp
@@ -1492,3 +1492,11 @@ LLVMRustBuildVectorReduceFMax(LLVMBuilderRef, LLVMValueRef, bool) {
   return nullptr;
 }
 #endif
+
+#if LLVM_VERSION_LT(4, 0)
+extern "C" LLVMValueRef
+LLVMBuildExactUDiv(LLVMBuilderRef B, LLVMValueRef LHS,
+                   LLVMValueRef RHS, const char *Name) {
+  return wrap(unwrap(B)->CreateExactUDiv(unwrap(LHS), unwrap(RHS), Name));
+}
+#endif