diff --git a/llvm/lib/SYCLLowerIR/ESIMD/ESIMDVerifier.cpp b/llvm/lib/SYCLLowerIR/ESIMD/ESIMDVerifier.cpp
index 1b6c6520cef39..951759db10c03 100644
--- a/llvm/lib/SYCLLowerIR/ESIMD/ESIMDVerifier.cpp
+++ b/llvm/lib/SYCLLowerIR/ESIMD/ESIMDVerifier.cpp
@@ -97,6 +97,8 @@ class BuffDeleter {
   BuffDeleter() = delete;
   BuffDeleter(const BuffDeleter &) = delete;
   BuffDeleter(BuffDeleter &&) = delete;
+  BuffDeleter &operator=(BuffDeleter &) = delete;
+  BuffDeleter &operator=(BuffDeleter &&) = delete;
 
 private:
   char *Buff;